We stayed for at week at J Nycoles room in Harlem. The room was clean and Nycole was very fast at answering any questions we had.
As we were staying in the winter the heat was on, and unfortunately this was controlled remotely by the super for the whole building, which meant that the room was extremely hot. As a result we slept with the window open, which made the nights quite noisy. Nothing to do from Nycoles side, but this definately made the stay less pleasent.
The room is as descriped two mattresses on the floor, a closet and some drawers for clothes. Wifi was working fine, and the shared spaces were fine as well.
Staying in Harlem is an experience, and it is quite different from the rest of New York. We enjoyed it, though it is definately not for everyone.
The metro station is around 5-10 minutes walk from the apartment, and it is possible to pick up a cup of cofee on the way. We took the metro in the morning, but did not feel quite safe about taking it after 10 PM. (We are probably not "New Yorkers enough"). Fortunately, a bus is available (M1) even in the night 100 meters from the front door.
All togehter we had an overall good stay at Nycoles. The 4 out 5 stars is based on the extremely low price for the room. You get what you pay for. So if you are going to spent most of the day sightseeing, the room is perfectly fine for that.