I highly recommend Joe and Susan's place as a solid example of what great airbnb's look and feel like.
The location is close to lots of great food, shops, transit and lovely outdoor space. Even a walk to the sites of downtown DC is easy.
The space itself is new, very clean, smartly appointed and bright/open. We usually prefer the main floor for light but this apartment was exceptionally 'open' feeling.
One of our top 5 places to airbnb in DC for sure. We'll keep coming back!