I live there. When I moved in a couple of years ago, I also worried about getting everything on the elevator, but amazingly, everything fit, including the bed and a full-sized couch. Still, be sure to do the math to see if you can get everything in. This article explains how to do the measurements:
btw, depending on the unit you're buying in to, the movers might have to climb stairs; make sure they're aware of this. best of luck! It's a great place to live!