PERFECTION, need I say more?
The layout is similar to the previous GTA games obviously keeping with the free roaming crime game. But there have been a few tweaks with the controls and whatnot.
The main character, Niko Bellic, is likeable throughout the game and doesn't really annoy.
Liberty City returns from GTA3, but is way bigger and has a lot more to do. However, I dont like Liberty City as much as San Andreas, simply because San Andreas is bigger and seems to have more to look at.
The final point will be the more realisitic nature of GTA4 this time round, no comedy gore a more gritty city. Don't get me wrong, GTA4 still has a lot of laughs in it and has the traditional Rockstar humour!
Overall a classic, the second best game in the series.