Great location on a (surprisingly) quiet street. Beautiful buildings in the area. Easy, and scenic, walk to many great restaurants, the Capitol Building, Library of Congress, Supreme Court, etc. If you have a car, make sure to get a parking pass. We were fortunate to have parking essentially right in front of the apartment.
Very clean apartment, nicely appointed (with a GREAT shower head!). Would definitely return and use again should we make a return trip to DC.