My two kids (7,9) and I skiied at Massanutten Dec 28, 29, 30. Despite the lack of snow, we had a lot of fun. There was practically no wait in the lift lines, the staff was friendly, and for beginner and low-intermediate skiiers the one blue slope and several green slopes were adequate. Night skiing was also good because it wasn't too cold!
We plan to return in February now that they have been able to make snow and all the 14 slopes are open.