Very plaisant stay as the apartment is clean and modern, and provided with essentials equipments. Near Oshiage station and close to Sky Tree Tower (5min by foot). The host was nice, reactive and answered our questions quite quickly.
The apartment is not well sound-proofed (seems pretty common in Japan so not surprising) and next to a railroad-crossing, which could bother light sleepers (but sleeping masks and earplugs are provided).