We were a family of 5 and absolutely loved this place! We would definitely stay here again in a heartbeat the next time I return to Tokyo. It was conveniently located close to the Maramuchi (red) line of the Tokyo metro and a short walk from Shinjuku. The stairs were a bit tougher for my older parents but it wasn't too bad at all. The apartment is clean and has all the amenities you need. The beds were comfortable (the sofa bed is firmer though) and the washroom/shower facilities were great! The host even left us with some Japanese origami a a souvenir of our stay there. I would definitely recommend this place to everyone!