I gave 5 stars for everything; the only thing I would comment on is that I tend to be a light sleeper and the radiator would bang at times in the night, causing me to wake up. My immediate reaction was "ghosts!" because DC has a lot of history so ghosts might not be out of the question. However, I came to realize it was...not that. :)
But otherwise, super cute place and Martha was lovely to communicate with! Close to a lot, easily walkable, and the place is super cute! My husband and I felt it was one of the best AirBnBs we have ever stayed in; highly recommend!