My friend and I enjoyed staying at Abe and Grace's place for four weeks while taking a course in the Washington DC area. The basement apartment was just the perfect amount of space for the two of us. Two spacious bedrooms, a good sized well-equipped kitchen, a dining room, a big living room with TV and cable, and a full sized washer and dryer.
The apartment was truly our home away from home, well stocked with everything you can imagine and might ever need. The metro cards were very much appreciated. The metro stop was a block and a half away from the house which made for easy and very quick access to the city and all the sites which were only a few stops away. The apartment felt homey and was very clean and well equipped. Abe and Grace even arranged for a complimentary cleaning service halfway through our four week stay.
The neighborhood is generally safe and we didn't experience anything that made us uncomfortable. Being in close proximity to the Catholic University of America was really cool and the Basilica which is walking distance is a must see. Several cool restaurants are in close proximity and are walking distance to the house.
I would definitely stay here again.