This Airbnb has a fantastic location that is within walking distance of the Mall and it's especially good for guests who arrive by car since the owner can provide a parking permit (at no extra cost) to allow street parking in the area for the whole period of your stay. We had no problem finding street parking within a block or so from the Airbnb. We left our car near the Airbnb on the days that we spent visiting Mall museums, but were able to access it at any time to drive to places outside DC. The parking permit is for a specific vehicle and dates/time, so you do need to provide that info ahead so that the owner can order and print the permit out.
The unit has all full-sized appliances: stove, dishwasher, and washer and dryer. The kitchen is also stocked with good stainless steel cookware (not the cheap flimsy aluminum cookware I've found in hotel units with kitchenettes). We cooked full meals and I did a couple of big loads of laundry because we had a week's worth of laundry for three people. It would have taken a lot longer if the washer and dryer had been the smaller compact size.
I appreciated details like the electrical outlet multiplier with USB ports in the bedroom, organic coffee to use in the coffee maker, and laundry soap pods for use with the washing machine.
Just a few minor negatives: The unit might be hard to access for someone who can't manage the very narrow steep stairs down to the basement unit. I can think of a few very large friends who are probably literally too wide (fat) to fit in the stairwell. I had trouble opening the lock box, but in part that is due to me being short and having older eyes. I also had difficulty adjusting the shower temperature---the left knob is for flow and right knob is for temperature, but the latter seemed to be able to rotate around and around with what seemed to be only one particular spot where the water was hot.
Overall, this Airbnb was great and I would highly recommend it. I would certainly stay there if we visit the area again.