We stopped here one night before our flight home. Wi Fi, boarding pass printing and breakfast were all included in the very reasonable room price, something we didn't find in many other hotels during our stay in the USA. The rooms were fresh and clean and, if we'd had the energy, the swimming pool looked very inviting.
The staff were very helpful and offered us great suggestions for last minute visits to fill in time before take off.
I was surprised to read in other reviews that there were no restaurants close by. There are in fact 3 within walking distance but be warned that Bob Evans is a dry house. If you have a car the Backyard Grill just 5 minutes away does excellent steaks and has a good wine list. Don't be put off by the covered area outside, there is a cosy dining room to the left of the entrance.
All in all this is a perfect location for Dulles Airport .

Stayed here for one night in between flight connections. This hotel is what it is: an airport hotel near Dulles. It's a short ride to the airport (free shuttle available during regular hours, taxi otherwise), the rooms are clean and spacious, and the breakfast offering is reasonable.

Liked (1) airport shuttle from Dulles (2) Enterprise car rental on premises (3) breakfast (though the hot items were the same egg patties and sausage every single day I was there). Room everything was fine. Exercise and pool were adequate, nothing to get excited about. There's a Wegman's a couple of miles north of here. There's also another Fairfield Inn & Suites in Chantilly, just south of Dulles airport. Sound insulation is not as good as some airport hotels, I could hear planes, but not enough to bother me.

Rooms are slightly above average in size, cleanliness and furnishings. This particular property is located nearby to IAD (reference other reviews re: shuttle service) and has a pleasant front desk staff. Breakfast was very good relative to the quantity and quality of the food. All in ll a good value for your dollar.