Saw it last night, I think the marketing was amamzing and that's where the hype came from. The movie is pretty intense, the camera is a little nauseating at times but I got pulled into the movie because it feels like you're right effing there. I dug it, the monster I don't think will live up to all the hype but if they showed you what the monster looked like no one would go see it, but the thing is brutal and the movie I think is really cool.
But whatever, find out for yourself.