Not a hotel but rather luxury apartments. I was there for 5 nights the first days of March. A central location for the National Mall, and all the Smithsonian museums. Fairly good eating nearby including a major Whole Foods about 10 minutes away. Running at the mall was pretty awesome despite the cold. A taxi ride from Reagan Airport was $19 with tip. The weight room is very good with a complete selection of free weights.
The staff was overall great. Some weird but minor control issues with one of the evening desk staff who was a bit passive-aggressive but really just a minor blip. The morning crew were fantastic.
The suites are exemplary. I suggest running over to whole foods on your arrival and stocking heathy foods for breakfast and lunch, then eating out for dinner. Try nearby Sichuan Pavillion on K street.More