We spent 8 days in Wandano early January. We were pleasantly surprised with the whole experience. The information we could get prior to coming was sparse. The whole valley really needs to ramp up the information that is available. We had no idea where our accomodation was or what the general area looked like. We stayed at the Pheonix apartments which were sensational, for anyone thinking of something special, make sure they are on your shortlist.
Mid week was warm and then starting to cool on Friday. Which usually means icy conditions so I wasn't expecting much.
To my surprise, Happo-one had really good conditions (packed powder) and I had a great time. The staff was super friendly, the facilities (especially the restaurants) were great and the mountain is the most impressive I've seen on Honshu.
Shiga Kogen is bigger but that's not really a fair comparison since Shiga Kogen consists of