Really great place to stay. Flat is very clean and nicely decorated, and is only a 5 or 10 minute walk away from a subway station (next to a diner that I would recommend). You can be in Times Square in 25 minutes. Martin is very nice and very happy to leave you to your own devices. He even provided us with some useful information about where to eat in the surrounding area.
The room itself is as described, and is comfortable. While not directly air conditioned, there are high up windows which the cool air can get through.
Only thing I would mention is the skylight; there is no way of blocking the light from it so if you are a light sleeper this may bother you in summer, although it didn’t trouble us.
Great stay, would definitely recommend!