It's the old Mamma Mia theater, if you ever saw that. I've never been to far back but I'd guess it to be fine. You're going to want to see the costumes as clearly as possible if you can manage it; they are the best part of the show.
I tend to think no movie is worth going to a theater to see... but this IS a movie I'd like to own when it comes out if that means anything...
Pete and I just saw Lion King and that is totally worth it! Great show