This games doesn't seem to do one thing very well, but many things mediocre. Shooting, graphically, online...all blah. I admire the context of the game, where you can bang hookers and shoot random people, but the aimless gameplay is something I'd get bored of in 5 minutes.
Apparently, they're emploring the Euphoria physics technology, as seen in the new Star Wars game, coming out later this year. That will be interesting, when running people over, or just people falling in general, but not worth purchasing it.
Of course, I am in the minority here. I'll play the demo and see if the online is worth it. 16 people running around bitch slapping citizens and running each other over with cars, may be fun. This game just looks very child like, compared to COD4 or Gears.