I had a very pleasant experience in Hisao's place during my stay in Tokyo. Hisao was very kind and flexible, and the apartment was very comfortable, a great accomodation for a reasonable price in a expensive city as Tokyo. It is small but perfect for all your needs, it is a typical japanese apartment.
Only a few minutes walking from the nearest Yamanote station (Uguisudani), it is a nice, clean and safe neighborhood, as typical in Japan too (I always felt safe while walking late night in the area).
Also, Hisao's wife was very kind to leave a daily sandwich in the morning, and Hisao offered me a free ride to a JR station in his car to take the transport to Narita Airport! :)
Very recommendable, I hope to come back some day to this wonderful country.