I am not a fun of fighting games, I am not very good at them and kinda bored easily after playing a few hours. So why do I love MK you ask? Let me answer..
First It has a cool story. You are not a fighter that show up just to fight on streets or sth (Did you see what I did there? :) ). MK Universe has background and all of the fighters has some motives to be in this scenario. Also this one has a story mode to show you what the story is. And not like third person kind of style as in old games. Story is that good, you can watch it as a movie or something from Youtube. So you fighting actually make sense. Also story mode is a good way to know your way around all characters.
Second this game has lot of side activities if you finished the game and don't like playing online. There are some mini games, challange tower with lots of activities and also there is a krypt that you have to earn kombat points to collect stuff like character pics, concept arts, alternate fatalities and costumes (I don't think they are useful in this version because they were all open from begining). So after you finish story mode, you still have lots to collect and while you are doing it, you won't get bored.
Last but not least, game is really easy to adapt (but hard to master I think) so any newcomer can learn the basics easily. There are wide options as difficulties, you can start from beginner all the way to nightmare. Game also has really nice tutorials and stuff, so it could be a good way to get in the fighting games. Graphics and gameplay are also a plus. Even with the worst graphics you can see the beauty in it.
In conclusion, if you haven't played MK yet, this one is a perfect way to start (cause it is a kinda reboot). If you are a longtime fan, I know you already got it. It is great to be able play a MK game on PC (They didn't release the last few games on PC). So have fun as you have it.