Superb story and great visuals. GTA feeling and fun. Driving has issues though.
The previous GTA games were different. After some time playing those games I found myself pissed off a mission I can't accomplish the 21th time I try and started to kill people randomly in the city for fun. It is fun but playing the missions are more fun. Which I couldn't because I either suck in completing them or there might be some other reason who cares, I don't. Well in GTA4 the missions and the difficulty is just perfectly set. I played quite some on the missions and no random massacre yet (sooner or later it will happen) and that's great! The only reason I gave 9.5 is because the driving. I'm from europe and I don't know what kind of cars you guys use in the USA but it's kind of insane how badly the cars turn in GTA4. Crappy suspension makes them jump and spin out all the time on low speeds. It's not realistic and makes it hard to control any of the cars.
Other than that, GTA4 rocks.