I called at noon on the day of check in to see if I could check in early, and because my room was ready, I was able to start enjoying the amenities of the hotel by 1:00! The front desk could not have been friendlier or more helpful in my interactions with them.
The room was perfect - I stayed in a Sundance Junior Suite, which has a king sized bed and queen sized murphy bed, a gas fireplace and a gorgeous kitchen that you could cook a complete meal in (or just keep your champagne cold - which is what I did). The bathroom was also really beautiful, with a jetted big soaking tub.
My favorite amenity is the roof top hot tub. We sat out there for over 2 hours, and enjoyed watching some moose wandering around on one of the ski trails that had not opened yet. Every 15 minutes or so, the aerial tram goes by, and you have views of Sleeping Indian, Jackson Peak, the Snake River Range, and the Tetons. I wish I was there right now. And, I can't wait to return.