I was there last night, as well. I liked the show well enough. Although it's long, I didn't find it dragging too much- though in an attempt to cram an epic novel into a palatable theatre length, things sort of happen quickly without believable build up in the first act.
The score is very sweeping. Which sounds great at first, but then... it seems every other song is a sweeping ballad. And although LaChiusa indulges in some different styles, it's all sung the same way, making everything sort of sound similar. The few uptempo numbers ("My Texas" and "Jump" in particular) are much appreciated.
That being said: Kate Baldwin is fantastic and looks stunning in those really beautiful period dresses from the 20s, 40s, and 50s.
The rest of the cast is pretty swell, too- Natalie Cortez makes the most of a small role, as does Bobby Steggert. Katie Thompson as Vashti makes a good impression- even if I feel her first act solo is completely unnecessary despite being one of the best songs in the show (it reminded me of "Doatsy Mae"). PJ Griffith, though no James Dean, is fine. Brian D'Arcy James sounds great, but for me was outshone by Baldwin and many around him.
Although this is, I suppose, LaChiusa's most "accessible" score and show, it still won't find mainstream success. It's too long and lacks memorable numbers.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."