Stella by Starlight

I've loved Sharon Draper since I read Out Of My Mind, and this was just as good. I'm still trying to decide whether I'm unhappy with the ending or not. As a reader, I like happy endings, something where the world gets better in that moment and we close the book feeling like it's only going to get better from there. At the same time, that wouldn't be fair to the context, which just isn't happy. We're still working on the whole “things getting better”.
I feel like I'd be less bothered by a hopeful, but not necessarily happy, ending if there were more options for middle grade black kids that did have happy endings.