This reply may be a little late to be helpful (you mentioned April) but if you find yourself headed back that way, the wife and I attended a party at a club in DUMBO, Brooklyn, called "The Loft" a few weeks ago and had a good time. Was cleaner and less seedy than most of the clubs we've been to. Nice floor for dancing, places to sit and talk, and a pretty bit play area that had a couple private spaces and a big open space with multiple beds.
We were at a hosted party, so I can't speak to the typical crowd, but the couples and unicorns there when we attended were well above average in the looks department.