I went here as a chaperone for a group of high school students. The hotel was packed and the layout of the elevators made it such that waits were interminable. Apparently this hotel is very popular with conventions as it is next to Reston Town Center. if you are planning to stay, ask if a conference is planned concurrent with your stay. If there is, get a room on the 3rd floor so you can use the stairs.
The rooms were nice enough, not much in the way of amenities other than a shoeshine stand. The thing that really bothered me though was the $14.95 daily charge for internet in the rooms. If Motel 6 can figure out a way to offer it for free, I think Hyatt could as well. There is a Panera bread near the hotel and many people congregated there for the free wi-fi.