I've made my booking directly with the hotel through email, in case you don't know -> email@example.com , the rate i got was 8000Yen + 150Yen Spa fee per person per night including two meals. They accept credit card, pay at check out. They provide free pickup from kawaguchiko station from 1400-1800pm. Journey about 5 minutes. Just ask the information counter staff to help you call the hotel. They're very friendly! Location was good, retro bus stop at Kukuna hotel next door. Wifi available at lobby.
I booked the 'terrace room', which is the room on the 6th floor with balcony. The view was amazing! But unfortunately i cannot view the whole Mount Fuji from my room due to weather conditions. All rooms are twin rooms. Not big but good enough space. The hotel is quite old so most of the furniture design is 'old fashion', but nevertheless it was clean and well maintained. There were chocolate & sour plum sample given for free. You can purchase it at the lobby's souvenir shop. I love the sour plum very much! There's a shower and a separate toilet in the room. We tried the hot spring there indoor & outdoor, not very big but good enough. Vending machines and massage chair are available outside the onsen.
The meal was buffet dinner.Starts at 6pm, kinda crowded when it begins. Quite a lot of variety including grilled salmon, grilled beef slices, sushi, soba, curry, miso soup,rice,spaghetti, oden, Houtou ( the famous yamanashi dish), fruits,cakes etc. We ordered crab legs for an additional 1000Yen + , not quite remember. Most food are japanese. Most guests i met was locals, chinese and thais. Breakfast was also buffet, sausages, hams, eggs, breads, croissant,congee,rice,salmon etc are served.
It was a very memorable stay as the view was great and was able to see winter fireworks at Oike park right at your balcony! Totally worth it! I will come back again!