Frankly it was sort of a letdown. I had problems with the plot, but not the usual problems that others had. Was the movie basically DwW with Smurfs? Yes. Did that bother me? Yes. Did that bother me the most? No. What did bother me the most? The fact that it was a James Cameron movie, and as such all the characters are already grouped off into good, evil, good-dead, and evil-dead.
Also, while people raved about the 3D, it was frankly crap, but thatmay be because 3D glasses aren't properly designed for people with glasses, in which either it either has depth but is blurry, or not blurry but bad graphics since the glasses hurt like hell after ten minutes with glasses, and removing them has the movie look just as bad as the blurry version.
So no, I didn't like it.
My friend had the best response to it, in which right after the movie finished, everyone started to clap, while he yelled at the tops of his lungs "WHAT THE FUCK WAS THAT?!". The entire theatre went dead silent, seconds before people would've stopped clapping.