Tony-San's flat in historic Asakusa was very homey,spacious and clean. It has a proper one bedroom and a tatami room with TV, which which our family of three and a friend (who slept in the bedroom, and my two kids ages 7 and 5 slept in the tatami room on futons) enjoyed a lot.
The flat's location was a short walking distance 10-15 minutes from the center of Asakusa (Sensoji Shrine) and the subway station.
The neighborhood is definitely residential, although being located in the middle of Tokyo, with several sights close by like the Skytree, Sumida Park and River, as well as the historic Asakusa neighborhood with lots of famous/established restaurants.
Tony-San and his wife, as well as grandchildren who we got to meet too, were very friendly and helpful. He picked us up from Asakusa Station when we arrived from the airport, and helped us with our luggage to the bus stop when we left to go to Tokyo Station bound for Kyoto and the Kansai region.