The set (it was basically several big pieces that kept revolving) was amazing, easily one of the best parts of the show. The transitions from Rob's apartment to Ian's apartment was very well done, particularly one split scene in the opening of Act II.
The curtain was really nothing special. It was a curtain...I think there was some red/gold lights projected onto it, but nothing special.
The score was...mediocre. There were some good songs, mostly for women, and Act II seemed to have overall better songs, but the score needs work, along with the character of Rob and a fair amount of Act I, as Rob (or maybe Will?) comes off as very unlikable. However, this is this great comedic montage in Act II where Rob fantasizes different reactions to something Ian says, which uses different genres and was a highlight of the show.
The cast was pretty good, overall. Will Chase seemed slightly uncomfortable, and was trying to use this like hard rock EXTREME voice for a lot of the spoken dialogue, which got old really fast and lacked personality. The rest of the cast, particularly Dick and Liz (though her singing was not what it should have been) were hysterical.
The audience was far from packed. There were a lot of seats open in the Mezzanine, I'm not sure about other areas.
"Your lyrics lack subtlety! You can't just have your characters announce how they feel! That makes me feel angry!"