It seems that the very popular X-Play television show has just aired their review of GTAIV. While X-Play is known for their tough rating system, a five-point rating scale, it still came out with a perfect 5/5 and with no negative feedback. As Adam says in the review "You need to play GTAIV", so go out and pickup a copy or even two. Because I know you won't regret it.

Source:  G4 - 'X-Play' Reviews GTAIV