Tomoko was very responsive to our variety of questions from the post office to food to the direct metro services during our stay. Her parents were also very friendly when we met them. They live in the house next door. They placed some bottled water and snacks to welcome us.
The place is very accurate as advertised, and a quiet place to stay in. For Tokyo standards, this is a large floor space apartment complete with wardrobe, kitchen and small bathtub. The ceilings are lower, so that is something you have to take note (it wasn't any issue for us).
Location wise, this is quite near to Nakano shopping area, and a short metro / bus ride to Shinjuku, so very convenient. This is a good place to stay for your Tokyo holiday for sure.
Be sure to check out the lunch menu set at Italian restaurant Gaby near the metro station, very highly rated!