Not my cup of butterbeer. I love all thing HP but I felt this was poorly written. I know it is a play, but I found it hard to read. I was disappointed that JK signed off on it. This is not the world that I want Harry's children to live in and honestly, it didn't even seem like these were plausible futures. 
 (view spoiler)[Since there are time jumps, I was happy for moment when Snape appeared, but it was short lived (hide spoiler)]