The emailed directions were very complete. They included procedures for both dropping off my car and returning to my car. They also included contact numbers if I had any problems with connecting with a shuttle, etc. The shuttle service was excellent, and it was on schedule for my trip to and from the airport, and the drivers were both helpful and polite. I was pleased that it was a covered lot, and that it was constantly attended. I will definitely use this service again if I fly out of Dulles Airport.