Akira is a grear Host who was very friendly and fast responding to questions I had before the stay and while check-in. The room was big enough for my needs with lots of informations provided for the guests. The bed was maybe a bit too hard but I think you can get additional layer to soften it a bit more. My room was in the first floor and because of the nature of airbnb and walls in Japan being thin it can become a bit loud in the early morning.
But for the price it is a very good place to stay. I stayed roughly 16 nights.