I saw this yesterday afternoon. There was a public memorial for the theater's founder, Robert Rechnitz, directly before the matinee, so the performance itself started about 15 minutes late. They didn't start seating the audience until after 3 o'clock, and I was impressed by how quickly and easily the staff got the audience situated, given the circumstances.
The show itself isn't perfect, but it's really strong, and I find myself still humming many of the songs hours later. (How often does that happen anymore?) The cast is excellent, and Amina Faye and Kelly McIntyre, as the two central girls, are phenomenal. Faye seems exceptionally polished for someone who is still in college. Lauren Marcus is having a lot of fun with her villainess role.
Two River Theater has clearly thrown a lot of resources at this show, and it's very well designed. The audience was a lot younger and more blended than the average regional-theater matinee crowd, and there was a sense of genuine energy that was nice. Clearly, there are designs for the show to have a life beyond the current production.