My family and I had a great stay at Rumika's. She provided great local tips (especially food-wise), check-in was a breeze, and we truly enjoyed the local feel of the neighborhood her place was located in. We were very close to Shinjuku station, which made Tokyo and the Shinkansen easily accessible. The house fits five of us easily, and each bedroom has it's own shower/toilet. There are stairs to negotiate, however, so some of us did keep our luggage on the ground floor for ease.
Rumika, thank you for providing the perfect base for our visit to Tokyo! We loved our stay!