I saw it. Thought it was meh.
I was excited going into it, so that may have colored my opinion. But personally, He is becomming wooden. He's starting to fall into that niche that Elijah Wood has, where he has one facial expression, and that is confused surprise.
Also, the film is the kind of horror movie that plays off of sudden camera cuts, sudden loud noises, it's all sudden stuff. There is no subtlely to the scares.
Personally, I also just saw Chronicle today, which I thought was way better. Just my .02