We recently stayed at The Pendry, DC. The staff was extremely professional, courteous, and helpful. The entire hotel was very clean, including the gym and outside pool/spa area. The hotel is in a great location. There are a lot of good restaurants, coffee shops, etc. within walking distance. Moonraker, the Pendey's rooftop restaurant/bar, has spectacular views. It is very pricey, but worth visiting just for the experience!
It was a very expensive weekend, but worth the money. We had a great time and look forward to a return trip.