We were up there last weekend. It is still pretty thin.
They had groomed the trails but off trail riding was at a minimum. There were still a lot of A-arm eating stumps and rocks.
If you are looking to ride the groomed areas, it is fine. In fact last Saturday we were up early and ready to be the first sleds on the fresh groomed trails covered by a nice layer. Unfortunately as we were getting on and started, two 4x4 trucks beat us to it We caught up to them when they were stuck and talked about the proper use of groomed trails.
Up high you could do a little off trail work but not much.