My family and I stayed at Florence's home when we visited NYC. All four of us (wife, two children, & I) for the first night, and only my son and I for an additional three nights. B/c of different travel schedules we planned it this way. Our host was quite responsive but there were a few issues with the home that we did not expect.
We expected two rooms but the home really had only one bedroom and an alcove that was converted to a bedroom with pseudo-transparent drapes to shield the room. A bunk bed was put into the alcove. This really gave no privacy for those individuals who stayed in the alcove. Perhaps fine for young kids, but did not work for older kids like ours and would definitely not work for adults.
The design of the apartment has a few quirks. There is a see through glass pane at the top of the wall between the alcove bedroom and bathroom of the main bedroom, and another one between the main bedroom and the other bathroom. This causes two issues: (1) The person on the top bunk bed in the alcove can see into one of the bathrooms, and (2) if the light in either of the bathrooms is put on at night - it shines directly into the bedroom or alcove (waking up anyone there if they are light sleepers).
There isn't much of noise insulation - during the first night my wife could not sleep till late b/c of late night activity and movement from the apartment unit above ours. I am a deep sleeper so crashed through the night. During the day though we pretty much heard when people walked around the apartment above us.
A separate issue - don't arrive late! Our flights got delayed and we arrived at the apartment around 8:30pm. We got charged $50 for an arrival and check-in at this time.