I personally thought the movie was excellent. Is it honestly on the level of Disney/Pixar/The LEGO Movie? No. But I'd sooner recommend it than the 8000 Illumination/Dreamworks/Sony Pictures Animation trash that gets pumped out every 2 weeks.
The movie had a real cozy feel to it and I think that every element in the movie worked perfectly. Only complaint I have is that AJ and Flutters should have contributed more. The songs and animation more than made up for that, though.
I probably had more fun watching this movie than I did watching any Disney film since Wreck It Ralph.