Excellent so far! The gym is rarely crowded when I go, which tends be slightly off peak - before 6:00 PM or after 7:15 PM. I've never had a problem getting a treadmill, and the women's locker room is rarely anywhere close to full. I don't know about the morning hours.
The classes are also excellent. They all meet in the same room (except cycling). Nearly all can be booked online up to 22 hours in advance. I take yoga twice a week, and also do Bosu, barre, and sculpting classes.
I belonged to Equinox Park Avenue before, and I like this gym a lot better. It's less crowded, with better machines, a better online booking system, and a nicer locker room. Corporate rate is $80 v. $140.