Great apartment in what is possibly the best location in NY. As Stara said, the apartment is obviously not new, neither is the building, but that is part of the experience I guess. I was visiting during extremely cold weather, but the apartment was always nice and warm.
Stara's local recommendations were great and she was super easy to get in touch with. Make sure you also listen to her warnings - particularly about how hot the hot water can be.
Do take into account there are two flights of stairs (not a big deal at all, but take your time with luggage).