This has tons of mixed reviews.

Pros:
One of the better stories in the GTA series
Graphics are nice and atmosphereic
Weapons are fun and it's better than the older games to go on shootouts
Cheats are way more accessible than the previous games, and in the latest GTA
Cars from GTA SA are updated and look more like the cars they were based off of

Cons:
Not much clothes variety
Driving is like Disney Princesses on ice
Limited Ammo with weapons
Taking any sort of damage, being pushed lightly, hitting the wrong thing, or falling slightly can get rid of the cheat menu in an instant
Less unique vehicles, more generic cars
Sometimes confusing mission objectives and overall confusing map

It may seem like more cons than pros, but it's up to you. For me, the pros outweigh the cons and this game is one of my favorites in the series with Vice City. All in all, this game is up to the player, not just me.

TL;DR - Buy it, play it yourself. If it sucks or doesn't work tweak the experience/game or refund.