In one word...Awesome
The variety is incredible, from great story missions with characters that grow on you, to activities like insurance fraud, tank mayhem, etc, to assassination and hitman contracts, a wide array of challenges, and just running and driving around trying to do different things different ways each time out.
The controls are spot on when in combat, and the cars drive just as they should...the small sleek cars fly, normal cars are normal, and big trucks run just as they should, slow and unwieldly to turn.
The amount of weapons is impressive, and allows you to try so many different ways to finish a mission.
Only blemish I have seen in this game is that some technical issues do pop up, such as slowdown and falling off the world into nothingness, and then requiring a restart, but these are very seldom and not a real issue for me.
Anyone on the fence about buying this game shouldn't be, this is a great, fun, and excellent action game that should not be missed. Hats off to the makers of this game for crafting an incredibly rich world in which to have fun in.