We had a great time in D.C. and Dagne‘s apartment. We liked the neighborhood a lot as well as the proximity to The Mall (walking, bus, taxi: we used all options).
The apartment is clean, well equipped and spacious for four (two queen-sized beds, no sofa). Parking is an art in D.C. in general. Apart from two-hour free parking during the day except for Sundays, there are a couple of parking options at USD 20 or 30 within short walking distance.