Though not right on the airport property -- it is two exits down -- the hotel is an easy cab ride or short drive over to Dulles. The rooms are standard issue Hilton, with nice beds and bedding, spacious bathroom with good shower, a decent restaurant (if a bit expensive thanks to few options in the airport area) and good noise proofing to blot out any highway or aircraft issues. The Executive Lounge is pretty decent though not exciting. Drink offerings are limited and the wine is not very good (the wine list in the bar is pretty bleak anyway). Service was fine with a friendly helpful front desk that quickly accommodated a request for room change. There are so many rooms here that at the right time of year this property is cheaper than the nearby Hampton. The size is one drawback. Walks to your room can be long.