Linden's place was exactly as described and it's perfect to explore Washington D.C. in one day.
We didn't get to know Linden and her family but they were available all the time. They got a visitor parking pass for us so that we could park our car on the street. The national mall with the Capitol, the White House, the Monuments and the Musuems are in walking distance or (if you don't want to walk all day long) there are city-bike-stations everywhere.
Linden provided a book with helpful information about the room, the neighborhood and getting around in Washington D.C.
The room was clean and quiet.
All in all we can recommend it.