Pointless fun that's only as violent as you are...
The graphics are not that bad. It's obvious they didn't put much effort into it though, just made a few character models and used the Unreal engine to power them. Gameplay is just like any other FPS. You run, jump, strafe, aim around, shoot, switch weapons, and... unzip your pants. Yes, you can go around peeing in this game. One thing that this game got right is people's reactions to things, the NPC's really react well. Go around with an assault rifle, they'll notice. Same if you go around with your pants down. The sound is ok... I don't have anything against it.
Overall, this game is not really what you would expect from big developers of highly acclaimed games. In fact, it's practically the opposite. Just a random game full of horribly violent fun. It has a funny story line (depending on your sense of humor) but really, this game doesn't need a story line. Really, all you're gonna end up doing is going around shooting stuff. Which they have made a lot of fun. You can go around for hours just causing the riots you wish you could do in real life.
So overall, don't count on the rating of this game. 8.5, 4.5 or 1.0, it all depends on your taste. If you like going around doing random acts of violence, by all means purchase this game. If you want something with more strategy or something, this not for you. Postal 2 is everything you sometimes wish you could do in real life put into a box. So if you're having a stressful day, just pull out this game and let yourself go