We stayed in Ko-san’s apartment for 3 nights.
The apartment is very closed to the station, and there are supermarket, convenient shop, restaurants, cafes near by.
Ko-san is very kind and friendly. He greet us at the entrance of the building and helped us to carry our heavy luggage upstairs (本当にすみません). He explained how to use the amenities in the apartment and have sent us a list of recommended place to visit.
The flat is very clean and spacious. It is quite difficult to find a room with such space at this price compare to other hotel in Tokyo.
We enjoyed our stay very much and would definitely love to stay in Ko-san’s apartment next time we visit Tokyo.