I said it before, and I'll say it again. Postal 2 sucked. Once you get over the childish violence ("Cool, I get to set people on fire and pee them out!!!!11one"), it's an incredibly boring and generic FPS. And not that it matters so much, but the graphics are pretty shitty too.
Now if you excuse me, I have to go buy some milk and meet Gary Coleman. THRILLING!