I've been playing this game for a couple of months now, and since I never saw a dtoid review despite my constant "Aerox get Killing Floor!!", I decided to take matters into my own hands.
I called Killing Floor "generic" when I was on
Failcast, and I stick by it. Killing Floor doesn't bring anything new, it really isn't innovative, the dramatic slowmotion kills might be overdone and you could get angry when enemies get stuck on a map and you have to go look for them, but It's still only $15 bucks, a ton of fun and by far the game I've played the most this year.
BUY IT and play with me! (At least you Rocky and Aerox).