I don't think there is any problem with the service side, and I think it is not particularly problematic for those who can sleep in a small room.
Instead of being cheap, there is a charge for those treated as basic amenities such as toothbrushes. I regret that I should have had it myself.
I had a good time with my dog. It was quiet and the scenery was good, and there was an open-air bath in each room, so I was able to enter at any time. Most of the staff are foreigners, but they were good at Japanese and there was no problem.