We were a group of 7 adults and 2 children. Saori's place was more than able to accommodate all of us.
Location of the house is just on the outskirt of Tokyo but close to Tokyo, Ueno, Asakusa and Skytree. The good train schedule makes it easy to travel back and forth.
The house was a short walking distance from Ohanajaya station and there are shops, restaurants, McD etc along the way.
For Muslims, there are shops selling halal food and a Masjid nearby within walking distance.
Saori's house in itself is good. Very spacious. Very clean. A good size living room, 'dining' and kitchen for us to hang out for dinner.
Water pressure was good. Continuous hot water. The heater was good and we were able to sleep in shirts and shorts in the middle of winter.
Saori was friendly & responsive. We had some unrelated issues & she replied fast & extended help.
Last but not least, if you are travelling via Narita, you can take the Skyliner from Aoto, which is the next station to Ohanajaya stn.