I found it quite enjoyable, far more sophisticated compared to other kids' shows. the humour is quite dry (a good thing) without relegating to boring slapstick while maintaining a fun atmosphere with a good deal of heroics. as a bit of a science fiction nut, i enjoyed the passive world building which makes the environment and setting as much of a character as buzz.
it's a damn shame that homophobes review bombed the movie without seeing it at the mere mention of a woman marrying another woman (which was done passively and subtlety as all world-building should be)
Disney polish with Pixar talent at its finest.. well worth a months subscription to +