I saw it at Vassar. It was pretty good, nothing mind-blowing or anything, but I think it will do well. The plot is a bit weak (a group of friends heads for California), but the music is catchy and constant dancing is enjoyable. Guarini was very good, he blended in well w/ the rest of the cast and had no ego at all (he had a pretty small part). I hope he comes to Bway w/ the show. If anyone has specific questions, PM me.
I have little interest in seeing this but there can never be another show as appauling as "The look of Love". It really tainted the genre. I have to say, it was in the top five of the worst musicals and most untalented casts I have ever seen.