Wonderful experience. I was very skeptical, but called the hotel prior to confirm that this was legit. $3/day for parking near Dulles (Va/Dc/Md) and a quick ride on the free hotel shuttle? Perfect. The shuttle left the hotel often - we waited only 5-10 minutes. Pickup at the airport after the trip - within 30 minutes (heavy traffic at the time) Would definitely use this service again.