The funny thing about this franchise is: I don't really care about Basketball, i don't even understand the rules and here in Germany, Basketball was popular in the 90's mostly because of the Chicago Bulls domination and players like Dennis Rodmann and Karl Malone appearing in WCW (Wrestling).
Still i bought a couple NBA games over the years, just for the fun of it, for multiplayer reasons, be it NBA JAM or to go this franchise, NBA 2K on the Dreamcast, followed by some NBA 2K games on the PS2 and Xbox 360 with NBA 2K12 being a "i heard some great things about it, so i bought it cheap"-pick and it surprised me with features that no other sports game has. Features that got expanded from this game to 2k15 now. The Career mode makes all other sports franchises out there look like amateur games. I've been playing sports games for over 20 years, regardless if it's FIFA, ISS/PES, NBA Live, NHL from EA or even NHL 2K, this here offers the greatest experience despite being scripted (you always start as an undrafted loser who has nothing to offer, it's a rags to riches, Rocky like story) but it gives you a ton of cutscenes and on- and offcourt experiences where your decision influences your charater and how you turn out as a player and how you're perceived by your team mates and coaches. Sure, it's limited by technology: You always have the same Coach at every team and there's only one player per team who does talk to you and the only head coach that matters is this Doc Rivers guy but it's a big step forward compared to how sports games were in the past or are still sold today (EA games where the career mode is a ♥♥♥♥♥♥♥ joke) and you have some freedom, like talking to guys on the "social media" feature, desining your own shoe and the choice between being an ♥♥♥♥♥♥♥, a michael jordan type ♥♥♥♥♥♥♥ who delivers or an humble underdog.

Next to career you have the Ultimate Team mode where you buy card packages to get players, contracts, features and trade them online with other people. FIFA from EA has that too though i never really cared about it, Pokemon for sports fans probably.
What i really like is the MyGM mode where you control a franchise, do drafts, trades, deal the players and staff directly in talk rounds. The owner of the club gives you goals you have to reach with your ultimate personal goal being to buy the club to get rid of the previous owner (who gives you ridiculous goals after a while, like in my second season on the Chicago Bulls, after winning the championship and Gasol becoming Finals MVP, the owner wanted me to trade Gasol so Mirotic can take his place)

Technical this game is nice. The graphics are great, though a bit too demanding on the hardware for what the game offers. While everything is nicely detailed and you can even see the sweat on the players, the game is just a direct, lazy port from the consoles without any optimization. So you need some good hardware to enjoy this game and then you get a lot of nice realistic effects.
The Music as always is a matter of personal taste. I prefer the soundtrack from 2K14 a lot more than this year's edition, at least there's Personal Jesus from Depeche Mode and River Styx from Black Rebel Motorcycle Club but even if you disable songs in the playlist, you sometimes hear the songs you hate in MyCareer (during the Scrimmage) and other modes and i got near to punch my speakers after having to endure that horrible, abysmal "Drop it like it's hot" song.
Also for your character in career you can choose a voice, though sadly 2K decided between "neanderthal black guy" and "ghetto black guy" for voice actors. Voice 2 has been in NBA 2K for a long time, Voice 1 is new though and it's baffling they chose not only a black guy again but one who has no voice acting skills whatsoever. This is not meant to be sounding racist but a more logical choice would have been a white voice or at least a black voice actor with some talent and not, what i like to call "ghetto goofy"
The commentating during the game is great once again, especially compared to other sports games (from the past or present), the trio makes a lot of jokes, have great chemistry and a lot of different lines, of course they repeat themself after a while and have lines that were in previous games ("Active hands on defense, active feet on offense" - "And Clarke, power on the dunk" with Kerr going "Guys this is just too close of a game" (regardless of the actual score) being the biggest offender, it has been in there since at least 2K12) but it's way better and way more advanced than what EA has to offer in FIFA and NHL.

And of course a lot of fun is in the Multiplayer, though sadly that's also the place where NBA 2K15 shows his ugly side.
There are cheaters who have ridiculos characters in the online career mode (where you play 2 on2 or 3 on 3) and 2K seem to not care at all.
Also the regular "Just play normal Basketball with friends" mode has it's problems. You can't play "handicap" matches, like 2 friends against 1 and online lag is a big problem just like the 2K Severs being down sometimes for extended periods, which happened last in January when the Servers were down for about 2 weeks making online play impossible. 2K is infamous for their server problems.

And the online thing will become a problem in the future: Eveything is online, since the game uses Virtual Coins and saves everything online, once 2K decides to pull the plug (because NBA 2K16 or 2K17 comes around) you won't be able to really play this game. Even the MyCareer and MyGM modes will be strongly reduced of their features then (you can't buy clothes for your player in MyCareer and you can't buy Skills in MyGM and Ultimate Team will be unplayable then)

So overall the game has some minor setbacks and the servers are a bit annoying but overall i really enjoy the game, i enjoyed 2K14 and 2K12 as well and think it's the best sports game series and it even made me appreciate this sport a lot more.

The funny thing about this franchise is: I don't really care about Basketball, i don't even understand the rules and here in Germany, Basketball was popular in the 90's mostly because of the Chicago Bulls domination and players like Dennis Rodmann and Karl Malone appearing in WCW (Wrestling). Still i bought a couple NBA games over the years, just for the fun of it, for multiplayer reasons, be it NBA JAM or to go this franchise, NBA 2K on the Dreamcast, followed by some NBA 2K games on the PS2 and Xbox 360 with NBA 2K12 being a "i heard some great things about it, so i bought it cheap"-pick and it surprised me with features that no other sports game has. Features that got expanded from this game to 2k15 now. The Career mode makes all other sports franchises out there look like amateur games. I've been playing sports games for over 20 years, regardless if it's FIFA, ISS/PES, NBA Live, NHL from EA or even NHL 2K, this here offers the greatest experience despite being scripted (you always start as an undrafted loser who has nothing to offer, it's a rags to riches, Rocky like story) but it gives you a ton of cutscenes and on- and offcourt experiences where your decision influences your charater and how you turn out as a player and how you're perceived by your team mates and coaches. Sure, it's limited by technology: You always have the same Coach at every team and there's only one player per team who does talk to you and the only head coach that matters is this Doc Rivers guy but it's a big step forward compared to how sports games were in the past or are still sold today (EA games where the career mode is a fucking joke) and you have some freedom, like talking to guys on the "social media" feature, desining your own shoe and the choice between being an asshole, a michael jordan type asshole who delivers or an humble underdog. Next to career you have the Ultimate Team mode where you buy card packages to get players, contracts, features and trade them online with other people. FIFA from EA has that too though i never really cared about it, Pokemon for sports fans probably. What i really like is the MyGM mode where you control a franchise, do drafts, trades, deal the players and staff directly in talk rounds. The owner of the club gives you goals you have to reach with your ultimate personal goal being to buy the club to get rid of the previous owner (who gives you ridiculous goals after a while, like in my second season on the Chicago Bulls, after winning the championship and Gasol becoming Finals MVP, the owner wanted me to trade Gasol so Mirotic can take his place) Technical this game is nice. The graphics are great, though a bit too demanding on the hardware for what the game offers. While everything is nicely detailed and you can even see the sweat on the players, the game is just a direct, lazy port from the consoles without any optimization. So you need some good hardware to enjoy this game and then you get a lot of nice realistic effects. The Music as always is a matter of personal taste. I prefer the soundtrack from 2K14 a lot more than this year's edition, at least there's Personal Jesus from Depeche Mode and River Styx from Black Rebel Motorcycle Club but even if you disable songs in the playlist, you sometimes hear the songs you hate in MyCareer (during the Scrimmage) and other modes and i got near to punch my speakers after having to endure that horrible, abysmal "Drop it like it's hot" song. Also for your character in career you can choose a voice, though sadly 2K decided between "neanderthal black guy" and "ghetto black guy" for voice actors. Voice 2 has been in NBA 2K for a long time, Voice 1 is new though and it's baffling they chose not only a black guy again but one who has no voice acting skills whatsoever. This is not meant to be sounding racist but a more logical choice would have been a white voice or at least a black voice actor with some talent and not, what i like to call "ghetto goofy" The commentating during the game is great once again, especially compared to other sports games (from the past or present), the trio makes a lot of jokes, have great chemistry and a lot of different lines, of course they repeat themself after a while and have lines that were in previous games ("Active hands on defense, active feet on offense" - "And Clarke, power on the dunk" with Kerr going "Guys this is just too close of a game" (regardless of the actual score) being the biggest offender, it has been in there since at least 2K12) but it's way better and way more advanced than what EA has to offer in FIFA and NHL. And of course a lot of fun is in the Multiplayer, though sadly that's also the place where NBA 2K15 shows his ugly side. There are cheaters who have ridiculos characters in the online career mode (where you play 2 on2 or 3 on 3) and 2K seem to not care at all. Also the regular "Just play normal Basketball with friends" mode has it's problems. You can't play "handicap" matches, like 2 friends against 1 and online lag is a big problem just like the 2K Severs being down sometimes for extended periods, which happened last in January when the Servers were down for about 2 weeks making online play impossible. 2K is infamous for their server problems. And the online thing will become a problem in the future: Eveything is online, since the game uses Virtual Coins and saves everything online, once 2K decides to pull the plug (because NBA 2K16 or 2K17 comes around) you won't be able to really play this game. Even the MyCareer and MyGM modes will be strongly reduced of their features then (you can't buy clothes for your player in MyCareer and you can't buy Skills in MyGM and Ultimate Team will be unplayable then) So overall the game has some minor setbacks and the servers are a bit annoying but overall i really enjoy the game, i enjoyed 2K14 and 2K12 as well and think it's the best sports game series and it even made me appreciate this sport a lot more.