Completely irreverent, beyond hilarious and absolutely awesome. All Marvel movies have their dose of humor, but this one just knocks the ball out of the park. Also, Chris Pratt is awesome. And whoever had the idea to cast Vin Diesel as a tree and Bradley Cooper as a raccoon gets my vote for president. Plus, there's "Do not ever dare to call me a thesaurus".
Sure, there's a little sequel-itis, but I dare say this is as good a sequel as it was possible to make. The animation is awesome, the story is interesting, and above all, once again, the 3D is used better than most other movies I've seen recently. DreamWorks is starting to pull a Pixar with this franchise.