I stayed in Toshi's place for about 5 days. I loved the location because it was nice coming to a quiet peaceful neighborhood in Ryogoku after spending time in the busy and loud city. There are convenience stores nearby which are about a 5 min walk and the station is about a 10 min walk.
There is a balcony which is very convenient. Those who worry about the bathroom being outside, its not a problem. The shower and sink are inside the house, but just the washer and toilet is outside. Dont worry about other people because you have the entire floor to yourself and can lock all doors. Wifi is provided in the house and there is a booklet that shows you a lot of useful information such as nearest taxis, post offices, store, etc.
Communication with Toshi and the team was incredibly fast. They help you check-in step by step and are in communication until you check-out. I would definitely stay here again in the future!