If I were to buy an apartment in Tokyo and live there, this would be the place I buy!
Harumi is one of the most accomodating hosts I have ever encountered. She provided very detailed information on nearby onsens and kimono rentals.
The apartment itself is spotless, looks brand new, has every amenity and furnishing like a 5 star luxury apartment, complete with panoramic riverside view, 2 minute walk to train, 10 minute walk to the red lantern tourist area and 20 minute walk to Skytree. It is very private and very quiet.