My boyfriend & I stayed here for 2 nights this past weekend and gave the place 4/5 stars overall. The pros: the place was very clean and the location was good (no more than a 15-20 minute drive to the nearby sites and attractions in DC). The guaranteed parking spot was very convenient as well (although be warned, the spot is very tight so you have to take your time backing into it).
The cons: the place is very small and not very functional if you are trying to spend any time in the airbnb itself. The place is great for no more than 2 people who are spending majority of their day exploring DC (ex: no sink to wash dishes which they provided, no tables to place any belongings on, no workspace which was an issue for my boyfriend since he was working from home the first day we were there, etc). Additionally, if the owners and their dog are home, you can hear everything they are doing upstairs (just an FYI if you are sensitive to sound, this is something to note when booking this place or just bring some ear plugs). If we were staying in the area for more than 2 nights, we would probably opt to pay a little more for a more spacious airbnb with more amenities.
Overall, we'd recommend this spot for a solo traveler or a couple looking for a reasonably priced and clean air bnb like we were!