The Doubletree Hotel in Asheville is situated outside of downtown Asheville and literally a stone's throw away from the entrance to the Biltmore Estate. Hence, it would be a very good base for those planning on spending more time at the Estate than in the city itself.
The hotel itself was pretty standard in quality. My room had been refurbished relatively recently and was perfectly adequate in terms of comfort. Climate control was, however, a little antiquated and the only apparent way to get any sort of heat in the room was to turn the air vent to full power, thereby making it quite noisy. The overall design and decor of the hotel is quite unremarkable. Disappointingly, the only breakfast service was in an attached TGI Friday's restaurant and the food was of a pretty poor quality, albeit cheap.
It seems as if Asheville has a real shortage of "mid-range" accommodation - all I could see was a few budget chain hotels and then the very expensive resorts like the Biltmore. As such, this hotel seems to fill a niche market but I certainly would not recommend that anyone go out of their way to stay here.