I thought it was OK. Not bad, but not "Oh, wow!" exceptional, either.
The story was very interesting, and while the characters (and dialogue) weren't particularly complex, felt real enough. The visuals are amazing, but the overall direction and cinemetography felt (to me) like a very long, yet very interesting, television commercial (I'm talking camera angles, and the general layout/pacing/set-up of certain scenes).
I do not regret the time I spent watching it. It was a really fun, deeper-than-it-appears, movie.
E^D