So after a few hours of playing, I'm ready to write a short review.

The game is simply fun. There are so many things you can do in the game and even without modifications, it's almost unbelievable that it's from 2013. After you complete the Singe-player Campaign (which is a little short / about 25-30 hours) you still have GTA Online which is fun with friends but after a while becomes a big grind party.

When you get tired of all that the game has to offer, I recommend modifications like LSPDFR (where you become a cop) or FiveM where you can Role-Play with others!