Elisa's appartament is very close to a subway station that connects you to all Manhattan through the green line, the location is very good. Elisa is very friendly and flexible, and she cares a lot about her guests. The only negative thing we found was that she lives in the 6th floor and there is no elevator in the building. Even if the building itself could be cleaner, the appartament is ok.
It was great given the cheap price we paid.
I really recommend staying at Elisa's, she is a very nice host.