Very comfortable and well appointed studio flat, located within a block of the Metro station, and within easy reach of a really good choice of cafes and restaurants (Diana's list of local places is very helpful and accurate).
The apartment is within walking distance of the Capitol, Library of Congress and other main sites of interest. We were blessed with good weather, despite the visit being in December, so the chance to walk around the city was a real bonus.
It's a very pleasant part of Washington, with well kept, tree lined streets and a great sense of community and family houses.
The apartment is very clean and tidy, and it was a joy to return to after a day's sightseeing and other activities. We didn't use the cooking facilities (only making tea and coffee) but everything was available if you want to have a change from eating out.
Our only concern was that the soundproofing to the main part of the house is not great, and on occasion noise from the children running and playing above was quite distinct....but this was only at certain times and did not spoil our very enjoyable stay.

Colin and Georgina from London, UK December 2015