The Hyatt never really seems to disappoint when it comes to their grand hotels like this one in Reston. The rooms are large and spacious, the bathrooms are clean and luxurious and the staff was VERY professional and courteous to us. We had a small issue with out room on our last day and they were quick to change/address it and get us another room overlooking the Octoberfest event that was taking place.
The restaurant there in the hotel is above par for a hotel in the middle of a suburban community. The room service matches the hotel in quality, and in PRICE. Do yourself a favor and order from some of the local restaurants like Uno (which DOES deliver to the hotel) or the Panera Bread Bistro (which is tucked away in the back of the lobby), as well as a few other places in Reston Town Center that you can find.
There's nothing really negative here about this Hotel, the Hyatt has invested a lot of time and money into this place making it comfortable, and enjoyable to it's patrons.