Crysis runs a good 45fps on nearly max settings on my PC. This game runs around 15-20 with everything set to low. It's like they got a load of chimps with terminal brain diseases to optimize the game. Can't really comment on it, as it's just flat-out completely unplayable. If you like blurry slide-shows, then this is for you. Goes to prove that you shouldn't rely on hype. Pick up a great little indie title today and do some of the more decent developers a favour. (And wow, I just pushed the score up by accidentally giving it a 10. Sorry, everyone!)
In short: Don't buy this game. It's physically impossible to install this on a PC without some massive roadblock at some point. After literally hours of messing about, I finally got the game working. This, to my disappointment, it was really boring, tedious and repetitive. Not worth your time. Stick to Valve :D