Mariko san's place is very nice, quite conveniently located close to the nearest railway station, and you can travel anywhere is Tokyo via trains/buses. The neighborhood is also quite good and peaceful. There is a beautiful river nearby, great for walks/run. The room has almost everything that you'll need, additionally there are quite a few grocery stores and convenience stores nearby. The only minor issue I had was with the Wi-Fi signal strength in the room. Mariko-san is quite responsive & helpful. Overall, highly recommended.