My friend and I stayed here at the end of December while skiing at Goryu. The meals are great! Dinner is Japanese style and was always a treat. Breakfast alternated between Japanese and Western styles. The staff are amazingly friendly and helpful; There are two gentlemen that speak English if nihongo ga hanasemasen. There is a small and comfortable lounge/bar inside Ullr which is great if you would like to relax and have a beverage in the evening. Our room was Japanese style with tatami flooring and Japanese style bedding.
The only downside was the small bathing facilities which got very packed when the days skiing had concluded. However there is an onsen just off the main road about 10-15 mintes away from Ullr which is what we used as our go to after a long day of skiing.
Ullr is about a minute walk to the base of Goryu and around 10 minutes to the train station and nagano bus stop.