This was probably the best stay I have ever had on airbnb. Heather does take this seriously and professionally. She sent so many suggestions on what to visit, as well as how to go around the city and how and what to use at home (primarily in the kitchen), which were very helpful.
The house is located ~2km (1.2 miles) from the Capitol, a comfortable distance to walk every day when getting to museums and attractions. And most of the Smithsonian museums, as well as White House and memorials are around the National Mall (which is right after the Capitol), also in a walking distance. The neighbourhood the house is in is very quiet, beautiful and clean. 5 minute walk to a good grocery shop and many cafes/restaurants.
The house itself is amazing. It's big, cozy, full of light. Big kitchen with all possible kitchenware you might ever need, including dishwasher, so we didn't need to waste time cleaning plates. The room is decent in size, and mirrors on all the walls make it appear even bigger. Beds are comfy, lots of drawers to put your stuff in. Complete sound and light isolation from the rest of the house, which is important if you are a light sleeper. We had our own bathroom, which is also nice.
Definitely recommend to stay at Heathers' place.