Make sure you get the correct shuttle from Dulles airport. There are 2 Hiltons in the area. We got on the wrong one and had to take an uber to get to the correct hotel. Other than that the stay was great.
"don't expect to get in your room before the check in time no matter what your reason is. they won't..."
"The accessible room on the third floor facing the parking lot is great for a wheelchair user with its roll-in..."
"I'd suggest not taking a room on the first floor as this seems to be the last area cleaned every day."