We stayed at the hotel for one night and left our car for 10 nights in their "Park, Stay, Fly" parking lot and took their shuttle to and from the RDU airport, which is about 2 miles away. This was a much better deal than parking directly at the airport, and the shuttle was there to pick us up within 5 minutes.
The hotel room was one of the cleanest, largest and most attractive that we've stayed in. The free breakfast buffet was very extensive, with scrambled eggs, bacon, fruit, cereal, yogurt, hot cinnamon buns, bagels, pancakes, juices, coffees, etc. Would stay again next time we fly out of Raleigh/Durham.