We had the pleasure to stay in both of Kotaro and Kei's airbnb listings. we stayed here first and had a very easy time getting around. As everyone says, Kataro and Kei are amazing and gracious hosts, that go above and beyond to make your time in Japan memorable and unique. If you stay at this location, Kei will provide an amazing authentic breakfast during your stay; this was a great way for us to start our day while simultaneously feeling more connected to the local culture. We were given total freedom and our own key, and we felt incredibly welcome during our stay. This is a perfectly adequate space for 1-2 people.
My only word of warning- if you are a side-sleeper, like me, you will probably either learn to sleep on your back, or you will have some sore hips, due to the style of bed. But this was a very small blip in our overall experience. It is also impossible to quantify how useful it was to have Kataro and Kei's knowledge and help, and the use of a pocket wifi and Japanese cell phone. There are some amenities in a hotel that are sometimes nice, but nothing tops having knowledgable and friendly locals at your disposal to answer questions and give you recommendations. In our opinion, this was the perfect way to stay in Japan.