This place is definitely value for money. Very cheap for Tokyo and the fact, that Shinjuku is only in 10 minutes walking distance. I gotta say, I was shown to a room that was different than the one on the picture on AirBnb, which might be a bother to other people. It was smaller than the one in the picture, but perfectly fine for me as a single traveller. The amenities were all there and everything was very clean. The walls are pretty thin, which means you will hear the other people and they will hear you. If you have got any questions or experience an inconvenience, just contact the host and he will help you out the best he can as soon as he can, which I appreciated a lot.
All in all, I would recommend this place to single travellers and would happily stay there again.