I have not stayed at the Doubletree, but I have stayed at the Marriott last month at Breck.
I thought the Marriott was quite nice and the location of the Marriott is excellent. The Marriott is just a 2 minute walk to the slopes at Peak 9 as well as a 2 minute walk to Main Street. There is a convenient ski valet at the back door of the Marriott facing the slopes. There is a free smores making event each week. On a different day each week, there is also a free hot dog cooking event. Both are quite nice and the cost can't be beat! There are other events during the week as well.
The Marriott pool and hot tubs are shared with the nearby Hyatt timeshare. The Marriott parking is underground and warm. The kitchen was quite nice and well stocked. There is a game room.
Their 1 bedroom is very large and well furnished. So all in all, I very much enjoyed our Marriott stay. Just for background, I travel frequently on business so I have an informed perspective on 4 and 5 star hotels.
My view on the mixed reviews of the Marriott is that there is a gap between people's expectations vs this marriott timeshare:
- first, this Marriott is a timeshare, not a Marriott hotel. As a result, there is no daily housekeeping service and some other amenities are different.
- second, unlike other Marriott timeshares, there is only a studio and 1 bedroom sized units available. There are no 2 bedrooms which is atypical for a Marriott timeshare. That said, the 1 bedroom is quite large and can sleep six.
Overall, I would be happy to stay at this Marriott again and I intend to do so next year.