There were many problems.
1. The heating equipment was only in the downstair. It was not enough to make the whole house warm. Above all, I couldn't get any explanation about heating so I trembled all night before getting response.
2. The light of the restroom didn't work. The handle of the restroom and one bed were broken. As soon as I arrived, I found those problems and told them to the manager.
However, the host anf the manager gave me fast responses, so I could solve the problems.