I had read about this museum in a guidebook beforehand, otherwise I wouldn't have known it existed. It is walking distance from the Hida no Sato folk village, so my advice is to stop by here before or after visiting the village.
The modern museum houses a beautiful collection of glass objects in one wing and antique furniture in the other. Both are nicely presented and well worth seeing, especially the glass. There is also a large gift shop and a cafe with indoor/outdoor seating. The views of the snow-capped mountains from here are lovely.
Because the museum is a bit out of the way, there are no taxis waiting to take you back into town, but I'm sure the staff would call one for you upon request. There is a free shuttle bus to the station, but we didn't ask about it, so I don't know what the schedule is. We chose to walk back to town which was OK for us, but don't try it unless you are physically fit because it is about a 30 minute walk (downhill toward town). There is nothing difficult or unpleasant about it, but it is a long walk.
All in all, I recommend stopping by if you are in the area anyway. The staff was very pleasant. We spent about an hour there and saw everything at a leisurely pace. As far as we could tell we were the only visitors there, but it was the off season.