Eh, I don't know, I wasn't really feeling the demo. I usually love zombie shooters, but this just didn't feel right. I wasn't very impressed by the Point A to B thing, which didn't work for some reason here. Nor was I impressed by a lack of story. I don't think I can stand "No story, just kill zombies" play for the whole game. The levels seemed short, so short that I think I did the first one in maybe ten minutes, and the second wasn't that long either. I can't speak for online co-op, seeing as I have not done that yet.
The multiplayer might make this game good, but, I don't know. I might buy it, but, it's not one of my Must Buy's right now. I had hopes for this game when I first heard about it, but now, not so sure.