Pros: Win was very responsive/flexible. Finding the location in Japan's inscrutable street addresses was pretty easy with a photo-by-photo guide. Pricing was comparable to a standard salaryman hotel like the Shinkoiwa Park Hotel, which I had stayed at numerous times.
Neutral: Photos would lead you to believe that there would be a couple rooms, a bedroom and sitting area, but really it is just one room the size of two double beds when the mattress pads are rolled out. Not unexpected for an AirBNB listing, oh well. Bathroom was the size of a standard small hotel one, meaning microscopic. Contorting to shower without making the whole room wet is a challenge (no shower curtain). The building is a 9-unit AirBNB 'private hotel'.
Cons: We were surprised to see the unit dirty. Dust was in every corner, and the sheets and mattress pads were yellow, stained, or both. One mattress pad had (meunstral?) blood as a stain in the middle. That said, when we requested new sheets, they were delivered.