I didn't get the chance to see this when I was in NYC this winter, so I went to see it at the Ahmanson last night. It was so good! The cast was incredible, particularly the two veterans of multiple productions, and the staging was so well done - I was sitting fairly close, on the far side of the orchestra, and I don't think anyone was ever out of my sight. The piano accompaniment was beautiful and effective. I was concerned about the length, but the three hours really flew by.
If you're interested in seeing the LA production, there looked to be plenty of empty seats, which was great for spreading out a bit, but I'm sure less than ideal for the theater and the cast.