I had a pleasant staying at Asegedech's place.
She welcomed me and made me feel at home. The room was clean and has air conditioning, TV, and Wi-fi. The host kindly provides the kitchen with coffee, tea and snacks. I didn't need to cook but if one needs to, the kitchen is fully equipped. There are two bathrooms which you have to share with the other guests (I had no problems with that).
The red metro line is nearby (a 10/15 minutes walk) and it takes you to Union Station, and from there you can reach Capitol Hill, The Library of Congress, etc.
Near the metro station there is a nice area (Bryant Street) with a bicycle path, a movie theater and a couple of street-food trucks (at least in the summer months).
I recommend this airbnb and the host and I would stay here again! Thank you Asegedech!