We had a great stay and really liked the apartment. They had a gully equipped kitchen and a spacious living room.
Joe wasn't there, so we had his room. But his flatmate was there, who was really welcoming. We spend some time in the evening with him and really enjoyed it.
The location is great. You can walk to many restaurants and bars nearby and take the bus or metro or walk for about 30min to the white house etc.
I would definitely recommend staying there.