The apartment is very spacious, technically I think it can sleep 10 with two double sofa beds in the living room, a double bed in one room and another room which a double bed and sofa bed...10 people could use it as a base but would feel a bit crowded. Two or three couples could easily stay here and be comfortable. The decor is basic but everything is functional and clean which for us was the most important thing. When I messaged Topu he got back to me straight away and was very helpful.
Everything was spotlessly clean- sheets and towels were even changed halfway through the week which was above and beyond what we expected. The furniture seems like it was all bought new in the last few months- very comfy beds and bedding. We visited in December and the apartment was nice and warm. The shower is hot and powerful. The apartment is less than 5 minutes from 46th Street-Bliss Street station which is on the 7 line. Trains are constantly arriving and go directly to Grand Central and Times Square. We enjoyed coming out of the city centre to the apartment each evening as it's a bit less hectic and I imagine quieter overnight, there are lots of shops and restaurants in the area but we tended to eat in Manhattan and come back later. There's a small supermarket on the same street as the apartment which was handy.
Overall I would recommend the apartment and if I go to NYC again I will stay there if it's available!