We're a family of 4 and Ritsuko's house suited us perfectly. A nice space and many thoughtful touches.
Ritsuko met us at the metro after being in touch with us on the way. She showed us some key local shops on the way to the house. We were given very useful info ahead of arriving in Japan about how to navigate our way.
The house is in a secluded street- very quiet at night. But also very handy to two metro lines, so best of both worlds. 5-10 min walk to stations.
The pocket wifi was very useful when going around tokyo, especially for messaging - but its bandwidth is a bit slow sometimes.
It has a great bath! We successfully used the kitchen a reasonable amount.
I'd recommend- especially for a family or small group.