Mari and Houcine's place is lovely, in a cool area of the city. We enjoyed our stay there. It was clear to us that the flat was pretty new (at least as a rental), because a few things were missing, but they were very quick to respond to us and bring what we needed. They were even so kind as to lend us a baby bathtub, which was very much appreciated! We would definitely recommend staying at their place, both because of the comfort and stylishness of it, and because of the neighborhood, which is close enough to the tourist sites of DC for standard sightseeing, but also an authentic and lively neighborhood.