Shigenori's place is great, It is perfect for single or couple traveler. I really like its location, which is right off the shotengai in front of the JR train station (8 mins walk), there is a coin laundry next door (there is a washer in the apartment) and an Aeon supermarket right next to it. There are Daiso, donki, gyomu super between the station and the apartment. There are plenty of shops in the shopping area in the station. Even more shops can be found on the other side of the station for more shopping options. Haneda and Narita airport buses are right in front of the station. Pocket WiFi is available, as there is no LAN connection.
All in all I enjoyed the place, but here are a few minor things that can make it better: First: there are very limited place to hang stuff, there is only a single place to hang a towel, i cant find other places to hang another towel if needed. Second: there are limited kitchen utensil provided, there is only a single frying pan, no other pots or pans, also there are no bowls, just plates. I also don't recall seeing a water boiler either.