Great apartment. Comfortable and a solid value. Neighbors can be somewhat noisy, e.g., piano playing for a couple of hours one evening (aprox 8-10p), but only once. Otherwise, the neighbor noise was present but easy to ignore.
The BEST thing about the apartment is the location. The whole neighborhood is wonderful, but it was especially nice being directly across the street from the National Museum of Mexican Art (admission free). I am a curator at the Smithsonian, and after visiting, I consider this one of the most important and beautiful collections in the United States. A small, powerful gem definitely worth your time, especially if staying at this perfectly located apartment. Brilliant host for setting up here.