If you are requiring a hotel in Madison, I would shop around for another place. I had to visit Madison two weekends in a row, the first I stayed at the Doubletree. While of standard quality for a Doubletree, it happens to be painfully close to an undergraduate party neighborhood--something we found out as we tried to go to sleep at a reasonable hour.
As I searched more carefully for where to stay my second weekend in Madison, I realized that this is equally priced with most of the bed& breakfasts in the area that are in much nicer locations and equally close to campus.