First, it’s great, and totally reverses Pixar’s downward slide. Second, they did an amazing job of making everything work as a character/story and a metaphor for how the brain works and an Aesop. A good chunk of the time kids’ shows teach lessons I consider abhorrent (looking at you, My Little Friendship Means Never Having Boundaries) , and at the beginning it looked like they were setting up one of those, but in the end in became clear they considered it exactly as problematic as I did.
Also I need to see it at home so I can cry harder. That is all.