The only reason this hotel rates a 3 is because it has the most perfect location in all of Park City. It is overpriced, dated, and stuffy. There are better options in both Park City in general and at Deer Valley specifically.
Rooms: While I have only stayed in one room (and in their defense I have been told that the rooms differ dramatically) I was very disappointed to get a basic hotel room for essentially $1,000 per night. It had a partial view of the mountains, but was very dark and dreary. The room was very small and the sparse furniture had visible and significant stains on it. For comparison's sake I stayed in a two room suite at The Chateau in January (across the street) for less money and had a bedroom, a full kitchen, two bathrooms and a large, well furnished living room. I wanted to experience Stein's since I have heard so much about it over the years. It was a mistake. This place is living in the past and surviving on reputations earned in prior decades.
Service: The service level at the hotel depended on what you needed. The bell staff and the ski staff were first rate, comparable to any 5-star property. The desk staff and the Concierge staff were OK. The restaurant staff bordered on rude and incompetence (especially if you wanted to grab a quick, light lunch while taking a break from skiing). There is feeling of entitlement that permeates the staff, which is a bit surprising. It's not like this place is Four Seasons Jackson Hole or The Montage Deer Valley. Perhaps management could send the staff out to visit other high level properties so they can see the difference. I stayed at The Peninsula Beverly Hills this past week and I was left stunned at the difference between the two staffs given their very similar ratings on this and other sites.
Location: Perfect. . .could not be moved one foot either way and improve the location.
Restaurant and bar: The restaurant does a great job with its breakfast buffet. Service is fast, friendly and efficient. Lunch is quite the opposite, unless one feels like eating two days worth of food at the lunch buffet. If one does not choose the lunch buffet he should go somewhere else. They simply do not like folks to order from the menu for lunch. I don't know if it's a revenue issue or an efficiency issue; however, we had to ask for menus and literally convince the waitress that we only wanted a bowl of chili. They did get even with us however, as the chili took about 30 minutes to get into a bowl and make it to our table. Dinner was OK, but not anywhere near the quality of J & G Grill or Mariposa. With regard to the bar, there is no bar. There is a lounge that requires table service and takes forever. Given Utah's relatively unique liquor laws this fact is exacerbated if one simply wants a quick beer after a day of skiing. It really is inconvenient for there to be no bar at the property.
Physical Facility: The main building is very nice and comfortable. The property looks nice, but again, if the rooms are like ours, there is a VERY expensive renovation coming in the near future for the guest rooms. We had to walk outside and about 250 yards to the bar/restaurant/ski lockers. While not a big deal if it's 20 and blowing snow it does require a bit of extra bundling.
Conclusion: We will not stay here again unless there is a major commitment to updating the rooms, and even then I'm not sure we would risk it again given the other choices. The Chateau, The Montage, and The St. Regis all offer better experiences at or below the cost of this hotel. I know this review is less positive than many on this website, but over our four-day stay the hotel simply did not live up to the level of competence that one expects from such a highly rated, expensive hotel.