It was an enjoyable stay. The place was very clean, and it was well equipped with necessities. The hot water for shower was hot enough to be comfortable and relaxing. Sato-san was very polite, welcoming and even bought us snacks! A portable wifi router was also lended to us to take outside. It was very handy!
The house is situated in a quiet neighbourhood but it is also close enough for us to take a train to the city. 2 stops away from Shinjuku and only a 10mins walk away from the station.
Overall, I'm glad we decided to stay here and would come back if the place becomes available again.