We were very impressed by the house, it was a great amount of space for our family to hang out together which is rare to find in Tokyo. It is very modern with two toilets and a large shower/bath. The beds were very comfortable and each bedroom has its own heater/AC unit so you can customize your temperature. The living room is a great space to relax after exploring the city. The shower is on the bottom floor so you do have to walk down two flights of stairs if you are staying in one of the rooms at the top, but common for Japanese houses to be very vertical so it was to be expected. It is about a ten minute walk to the nearest train station and shops, with a seven eleven just a few min away to buy snacks and coffee. The host met us at the house to ensure we arrived at the right location as it is in a residential area and can be hard to find via maps, and were very responsive to questions.
Overall we would definitely recommend staying here and would stay again!