just got done with the demo. it was pretty short (dunno why the devs said it was a 30 minute demo, that shit aint true).
as far as the demo went, i was very impessed. this game kicks all kinda ass. it was very moody and had a great feel to the combat and controls.
they definately have the game running a lot better than the multiplayer beta. i can keep a pretty steady 60fps (other than the water room) with around medium settings.
overall, i am very impressed and am really looking forward to this now. pretty fricken awesome!