My wife and I stayed 5 nights in Novmeber at the Park Hyatt. We received excellent service from all of the staff, parking valet, doorman, reception desk, concergie, restaurant and even engineering when we had some A/C problems that were quickly resolved.
Nice rooms, but a little strangely laid out closet area in the bathroom. Limited to 2 baskets and some shelves for clothing storage,plus hanging area. Living room area could of used a small couch instead of the 3 lounge type chairs.
Food in the Blue Duck restaurant was very good. We ate several breakfasts and one dinner in the Blue Duck.
The hotel is within easy walking distance to Georgetown shops and restaurants. Also the metro is an easy 4 block walk.