We skied Nakazato in the afternoon and night with conditions altering between heavy snowfall, clouds and clearing, and mist after dark with snowfall returning. Except for occassional icy spots, conditions were good, with knee deep powder on several of the more challenging mogul runs.
Another review mentions the difficulty of the "one" night run, but when we were there a longer route avoiding difficult slopes was open and seemed within the grasp of most beginners. Actually, we found this resort surprisingly pleasant for night skiing, though we were not out to cover a lot of ground. It was less crowded and the main lighted route could be split in several places, the most exciting at a wide, curving, fairly steep mogul run that had some outrageously deep spots of snow.
There is something charming about this place, and I recommend it as a warmup stop if you're planning several days at different resorts in/around Yuzawa.