"So, what did you think?" It's like an outline of a really, really good story, and kind of a nostalgia-fest: bringing up old familiar characters and situations in a new and exciting way, mixed in with a few fresh faces.
"You didn't find it off-putting, reading it in play form?" Not at all, though it went by all too quickly, and I did (occasionally and briefly) wish for more depth. Most of the time, however, I was too swept up in the story to mind. And at other times (probably mostly when reading stage directions) it actually enhanced my experience as I imagined what it might be like to see the play performed. In fact, I hope someday I have the opportunity to see it on stage, because I can imagine the play is really exciting and engaging. But as a book, it could have been more fleshed out, like the original 7 books were. There's obviously enough material there.
"What was your overall impression?" I loved it. I wish the story would continue. And the hope has been kindled within me that perhaps someday it will.