We have done both downhilling and X country for a lot of years. Maybe you remember we went to Utah to downhill last year before Christmas. X country takes a bit of getting used to, but it's more than a work out (and yes it is that), it's an unbelievably beautiful way to appreciate the deep woods in winter. The silence back in the woods during a snow storm is different than anything you will ever experience.
It sounds wonderful. I think I might try it. Yes, I do remember your trip last year. :)