We were really happy with our stay here. The proximity to the National Mall was probably the highlight as it made getting around the city so easy. It's about a 30 min walk to the major sites and we went down there each day to see the museums and monuments. (The metro is also available to go downtown). The apartment itself was very nice, and very clean. The pictures on the site were accurate. There also was free street parking on the street during the weekends, and there was free parking on the street perpendicular to the apartment on the weekdays. We were able to park within a 5 min walk from the apartment for the whole stay.
It is a first floor apartment and there was some street noise from people congregating outside during a lot of the day. It didn't bother us but do be aware there's some city noise.