The place is located in a residential area in Ikebukuro, with a lot of restaurants nearby and around several minutes walk to the Ikebukuro station. The owner is quite responsive and helpful.
However, the building is a bit old and has poor sound insulation. For the 4 nights we spent there, we were annoyed by the noises made by people who lived upstairs every night that we could barely sleep. Besides, the bathroom is tiny, which is shallow even for a single person to stand inside.