The runs from the Gondola are limited, and ordinary compared to Annupuri, Grand Hirafu and Hanazono. The bubble gondola from the Hilton is deadly slow and very small. Anyone large will struggle if sharing a seat. Exit from the Gondola required a long trudge to the right to cross over to Hirafu, or left down to the Wonderland chair to get higher to avoid walking.
Green Leaf looked fine, and we tried the Onsen which was indoor outdoor and pleasant, but lacking a cold water pool to truly work the muscles vs the hot baths.
The NV area was quieter than the other 3, likely due to the lesser accom, but also due to the lesser offering. If you don't have a choice to stay in Upper Hirafu, then this would be fine, but limited access there for food & nightlife, so make use of the regular free shuttle to get out of NV to visit elsewhere