This is my first experience viewing a movie where the CGI characters and other effects are not detectable. All are seamlessly integrated with real actors making for a truly believable experience.
My only gripe is with the 3D viewing glasses. They appear to be made so that the tips of the frame that go behind your ears place a lot of tension onto your head. Might be OK for a short viewing but not with a full length movie. The back of my neck hurt and even with periodic movement there wasn't any relief.