This is a nice little hotel. The room is big and clean, and the Kawaguchiko station is within walking distance (~5 mins). You can enjoy the view of Mt. Fuji inside the room.
But 2 points made my stay not perfect enough.
(1) The room cleaning starts (also the checkout time) at 10:00 am, which I think is too early if I am planning for a relaxing trip in such a lovely area. I think 11:00 am would be much much better. Everything is too rush in the morning.
(2) All the staff is helpful and nice, except for the Chinese woman. She keeps talking Mandarin to us even though we speak Japanese and English to her. She should be more aware that not every people coming from Hong Kong (and my friend comes from Australia!) speaks Mandarin.
Other than that, this is a good hotel.