I liked how Diana personified the inner voices we all have in our head. She created very distinctive, differentiable personas for each of these voices, which was quite a feat! And they were amusing and touching, and something we can all identify with. I think I will compartmentalize some of my inner voices as she did to help better deal with them!
What I didn't like
The only thing I would change is the pace. It packs so much into every moment that I think a slower pace would make it all the more enjoyable.