The room: 1/5
Staff and service: 4/5
Location: 5/5
Amenities: 4/5
I cannot stress this enough, the room was nigh uninhabitable. It was musky and damp,with dark mildew stains growing on the wallpaper. The bathroom fan was broken, which left us with a fuzzy, mold-blackened shower curtain. The stench of mildew and ancient, stale cigarette smoke was so strong that even after a refreshing onsen visit, we were immediately stressed by our room conditions. We ended up avoiding using the bathroom entirely and only using the onsen facilities due to the fear of the black mold. The bed that we had was hard and springy. I've had pull-out couch beds that had more plushness to them. The mattress was more similar to a hard cot than anything and gave me back discomfort.
That being said, the onsen facilities were delightful, and the staff were also very kind. Though, if you have the misfortune of booking one of the cheapest rooms, be wary of the room conditions.