Small apartment placed very close to one the most lively areas in Tokyo, Shinjuku. Still a very quiet street where you can rest properly.
The building is not new, and it might look a little bit old from outside, but the room has pretty much everything needed to have a nice stay, even if it is long, and has been kept in reasonable well state. I stayed 10 days and was not missing anything at all.
In general terms, the description of the room in the website is pretty accurate.
Additionally the communication with the owners was good, and all the process is super confortable and well explained.