i went to nyu undergrad and i used to live above that gym...it is great, but yes there are often waitlists for areobic equiptment (ranging from btwn 5-60 min). It all of course depends on the time of day you go and season. from around 4-9/10 it was always pretty crowded....esp. after winter break and right before spring break. everyone trying to work off holiday weight and get into swimsuits for spring break i guess 🙂