It's the best GTA to date in terms of mechanics and the game world, though I still had favor Vice City and San Andreas just a bit more. I'd probably give it a 9/10.
I will say that the torture mission was over the line, even for GTA... It actually made me put down the game for a few days.
Current gaming platforms - Switch, PlayStation 4, Xbox One, Wii U, New 3DS, PC