Although the hotel is about a 10-15 minute walk from the Kawaguchiko Station, we could have taken the Red Line bus (covered by the passes) from the station to the Kawaguchiko rope way which shares the same ramp (the white building in the first photo is the hotel). The view from the hotel room is stunning (second photo).
As in Hakone, you have to pay a 300 yen onset tax.
The staff do not speak English well, but they were friendly and tried to help.
If you ask them ahead of time, they can drive you to the Kawaguchiko station after you check out.