Very fun movie with one insanely catchy tune that will lodge in your head like a brainspider. It’s goofy and surreal, with plenty of jokes, some of which are at oldschool Lego expense, which is fine. Without spoiling however, I think this movie is not just working on a meta-level (big deal, a lot of kids movies do that, to keep the adults interested), but actually transcends this in the last act and becomes meta-meta-level (meta about meta-levelling).
Combine this is various butt-reference jokes, Batman, robo-pirate and similar, and you have something that the kids will enjoy, but so will the adults. In the screening I was in, you could hear the kids really laughing in places, but you could also hear the adults laughing just as hard in the same places.
Definitely recommended.