I liked it. There's a couple good jump moments in it. Some complaints:
-The movie takes a long time to develop. Sure made for a frenetic and pretty strong last 10-15 minutes, though.
-Critics are going to say it wasn't scary enough, because it isn't. And honestly, I liked that because it felt like they focused more on suspense than cheap scare tactics.
-I'm trying to avoid spoilers, so I won't go too deep. I'll say this, though: I felt like out of all the "found-footage" movies, this had the best conclusion. Of course, Blair Witch/Cloverfield/Paranormal Activity all had meh to awful endings, so TIFWIW.