Found this place last minute since we could not board our flight ...booked it thru booking.com website 1 hour before showing up.
This was very late evening (almost midnight). Front desk people great and helpful...they extended for free our check out to 02:00PM (12:00 is standard) due to the fact our next flight was in the evening. We really appreciated.
Rooms are big ...extra clean...nice smell, coffee maker, microwave, giant TV with dozens of channels (kids, nature...etc..). There's even popcorn for microwave provided.
Incredibly quiet. There's an indoor pool and whirlpool. Only negative remark...the pool water temperature was nothing but "warm", especially since I was travelling with children.
Breakfast is top excellent.
Nearby is a Taco Bell + Wendy.
Free shuttle from/to airport.
Would definitively stay again should I be in IAD...for such a rate...top service !