This game is really amazing, in the sense that it is the only game, to date, that has copied the GTA style of sand-box.
The control scheme is superior to GTA, in the sense of weapons, and actually taking skill to shoot, instead of auto-aim...some may not agree with this, but I feel this is the way these style games should play. The weapon selection is also good, although sometime faulty. Driving controls are good as well, and equal to that, if not funner, than GTA...
The soundtrack is also very good, but not better than the likes of GTA. The overall sound is very good, and it shows a lot of nice touches, such as being able to hear music coming out of the car from traffic.
The only thing that hurts this game, is the little bugs you get here and there. Other than that, the content and things to do may seem overly aggressive. However, it is also a good thing if you enjoy playing this game...
All in all, this is, in my opinion, a must-have for any Xbox 360 owner.