I felt the movie was very underwhelming and a huge let-down.
The CGI was impressive in some points, and average the rest of the time.
The story was good, but felt really dragged out to me and didn't get really good until the end.
The voice acting wasn't that great either, feeling very emotionless most of the time.
In fact, most of the characters felt that way. Nearly all of them for 90% of the movie had the same bored look upon their faces, and rarely ever showed any warmth at all.