We had a great stay at Blaise and Eva's apartment! I especially loved the location: it feels very safe, several busstations are in walking distance and there are great Ethiopian restaurants nearby.
The apartment is lovely too; clean, spacey and comfortable. The ceiling is a little thin so you can occasionally hear them walk above, but they are very considerate and try to be quiet.
Blaise and Eva were really kind in general; check-in was easy and uncomplicated and they immediately helped us with any questions. There was even some coffee waiting for us in the flat!
They need to use the apartment for washing occasionally (meaning once in the week that we spent there). But they discussed that with us openly and catered to our wishes when to enter the flat, so it wasn't a disturbance at all.
All in all we felt very much at home and would choose this Airbnb again should we return to Washington DC!