It's not written very well, but there are multiple reasons I'm glad I read this.
1. Todd. I always like a middle grade character with mental health issues who's learning to deal. He was definitely my favorite character (even though I didn't get very attached to any of them).
2. The subplot with Gemma and Miles and that whole toxic friendship. I can honestly say I have never read a middle grade book that explores that kind of dynamic in a relationship (power imbalance—basically a 16-year-old using a 12-year-old as a therapist). It was extremely interesting, and something I was glad to see addressed.
3. How incredibly wholesome their foursome is. It's an enemies-to-friends journey for every single one of them, and it made me happy.