We just returned from a 5-night stay at the property and couldn't have been happier.
The home is very clean and nicely laid out with ample sleeping space for our family of four (six could sleep here comfortably). The location is perfect, just a few blocks from an orange line metro station that we used to get to the National Mall and White House within minutes. One block over is a street full of great local restaurants and shops. The house is also very convenient to the highway, which we used for trips into Alexandria, Arlington and elsewhere in the region.
Deborah was extremely professional and helpful. She has filled the house with little touches to aid guests -- informational books and maps, items for the kids, Metro cards that can easily be reloaded (we left a few dollars on those, so whoever books next, enjoy!).
I would definitely stay here again on a future trip to Washington, D.C.