We stayed in Nukumori no Yado Furukawa for 4 nights during the Rugby World Cup. We were the only Western visitors in the hotel so a full-immersion experience.
The hotel is some way out of Sapporo and no great reason to be there other than the hotel; we used the hotel shuttle, took a taxi and also hired a car one day.
Great buffet breakfast and huge multi-course dinners. Some of the best crab we have ever eaten. One of our party was a veggie and the staff were very willing to provide alternatives.
Onsen is very nice; segregated; quiet in spite of being a large-ish hotel.
Really polite and friendly staff -couldn’t have been more helpful.
Highly recommended but some way out of Sapporo.