Convenient. Staff very helpful.
Great parking near Dulles Airport/IAD for a great price. Less expensive than the uncovered economy lot. My only complaint is that you can't use the barcode on your confirmation to enter. An attendant has to let you in, and if he's dropping people off at the hotel for the airport shuttle, you may have to wait a few minutes. Plan to arrive earlier than you normally would to have plenty of time to get to the shuttle.
It's a spacious parking lot. It kept my car away from snow. The price was not bad for 30 days.