Went to watch Cloverfield the other day.
It was pretty good in the beginning. I especially love the camcorder view. But then halfway into the movie, i developed a slight headache and got a bit nauseous because of all the jerky motions of the camcorder. It's not just me, both of my friends felt the same way as well, and i notice a few people got up from their seats and didn't return.
And i kinda got bored of them running all the time. The monster's spawn didn't appear often enough IMHO.
And the lack of explanation of the existence and appearance of the monster? So Lost.