Went to DC for a conference while the low was 15F, and I found this location close to the convention center - only about a 5 minute uber ride - the blankets warm and the space, cozy. The central heat was on, and though (as one of the Airbnb'ers noted below), the shared bathroom is downstairs (room is upstairs), the place was warm and not hard/far to get to.
Donna's place is very close to some great restaurants (e.g., Busboys and Poets)! I ran into the tenant the first night, and he was pleasant; he seems to work long hours, so he was hardly around, which made me feel like I had the place to myself - for the most part. Also, check in was easy, and I loved the simple numerical keypad access. Donna doesn't live at the home, but was so quick to respond to my messages, and was very accommodating during my stay!