Great service and experience. You can call for a shuttle to pick you up from Kawaguchiko station (go to the Info Center and they will make the call for you).
Lots of features like massage chairs overlooking Lake and the Mt Fuji. Drinks are ample in the lounge and included (no alcoholic but they have tea, coffee, juice and at certain time matcha). Also, pingpong table, and of course the onsen.
Beware that the hotel meal will include 90% seafood, so if you don't like seafood do ask if they can accommodate.