Cilla - As one who wants to stay as far away from the stage as possible

, I'd never want to sit onstage for such an "out there" show. But that's me - it was enough trouble for Skip to convince me to get onstage for the two Starfighter talkbacks in the festival in Seattle. (I sat onstage when Richard Burton was in Equus on Broadway 30 years ago, and really didn't like the feeling.)
But for friends who don't mind sitting where they can be seen, and literally having the performers sitting around them, it's been a glorious experience - especially if they're in the seats which are closer to the front of the stage. I believe those are the lower numbers. Then you get to see much more of the staging. If you're in the higher numbers, I'd suggest listening to the album and reading the synopsis beforehand; that might be a good idea anyway if you go for a stage seat, so you won't be shocked by the goings-on.
But if it sounds like fun to you in prionciple, it will turn out to be fun!