We loved this house. A group of us stayed for a week: a couple, three singles. The house is narrow, but very well laid out. Part of its charm is how cleverly all of the requirements of a 'normal' house are fitted within the confines of the narrow block. The bathroom is on the street level, along with a double bedroom and a separate toilet. The living areas are on the second level, and another double bedroom and double-bunk room on the top floor.
There is lots of technology in the house: heated floor, air con in each room, Apple TV (incl Hulu movies), fully-functioning kitchen (incl dishwasher), which we put to good use, wonderful shower/bathroom (with drying room), fast internet, plus a mobile wifi.
Tracey was very responsive before and during our stay. She met us at the house and guided us through the various aspects of the house.
The location is 2 minutes walk from the Tokyo Opera City, at the Hatsudai station. Then it's 1 stop to Shinjuku, and all that has to offer. Or, there is a 7 minute walk to an undercover walkway and another 5 minutes to Shinjuku station entrance. Of course, Shinjuku is a large station, which can take some navigation: part of the fun on Tokyo!
Highly recommended.