I liked it too, usually I stay away from 3-D movies because they take every chance they get to make a character pop out from the screen, but this wasn't really 3-D, just a really good hi-definition, it had some 3-D elements to it, mainly because if you took your glasses off, you couldn't see squat. I liked mainly because it surprised me, probably because I've played too much halo, because the humans lost.
I don't know if anyone else has noticed this, but if you look in the mirror with your 3-D glasses on, and close one eye, the other eye of the glasses is totally blacked out, it's pretty cool actually.