Upon arrival we were assigned a room with an adjoining door, but the lock between the rooms didn't function. We were given another room, in which the thermostat didn't function and the closet lightbulb was out. The repair man was prompt and quickly addressed both issues in our second room. While fixtures are top notch cleanliness was not. The shower floor was never clean, in either room. At this price point one would not expect theses issues. High end fixtures were nice, but overshadowed by the aforementioned.
The ski valet service was exceptional. They were the highlight of the hotel and made ski prep as easy as I have ever had. Tip: request a third floor room, you'll be close to the ski valet and pool area.
Another highlight was the fact that the Viceroy partners with Mercedes to provide complimentary transport around Snowmass, and the hotel is right next to free public transportation to Aspen. For our family the location was ideal. The room could have been ideal, had the staff paid attention to details ahead of time (locks, cleanliness, lightbulbs, the little things).
One final warning: don't make a reservation until you have read their ridiculous cancelation policy. Our arriving flight was cancelled due to weather, and we missed the first night of our trip, but Viceroy expected payment in full even though we called 24 hours prior to check-in to let them know about the flight problem. The management did give a room credit of 40% the next day. A spoonful of sugar for very expensive medicine.
Overall, I'd consider coming again but I'd also look at the other Snowmass slope side options as well.