We had a wonderful stay at Naoki's place. The location is excellent, central but still quiet. Everything was in pristine condition and squeaky clean. We didn't encounter any insects/roaches. The portable WiFi also came in very handy. The kitchen is small but functional, cookware and dishes are available. Just bring some Shoyu and seasonings. Naoki is very helpful, he provides a detailed guide that explains how to get to the apartment, how to check in and out, and how to operate all the electric appliances. We will definitely try to stay at his place again if we return to Tokyo.