(It's not often you can write both "theatre" and "scifi" as a shelf for a book, and even w/ this one it's kind of a stretch.)
It was interesting. There were more ideas in this book than I was expecting, or even prepared for, or can remember, and I just read it this morning. Will need a reread to digest.
Reminded me a lot of Rhinoceros and The Visit, as well as Doomsday Circus, even though I've only read the first act of that. However, this predates all of the above. Will most definitely need to reread.