Nice flat in a calm area, just nearby the Ningyocho subway station (and not far - about 15 minutes walking distance -from some other subway and even JR station, in about 25-30min walking distance from the Tokyo Station). Easy to reach from everywhere. There is also a 7-eleven and another shop in about 3-5min. walk, and some other shops and little restaurants in the area.
The communication with the host was easy and uncomplicated. The WiFi signal was ok, it was also warm in the apartment due to the conditioner.