The apartment is is in a beautiful old building with a gorgeous classic Sevillian interior patio. The location is the best of all possible ones -- two-minutes walk from the Cathedral, El Alcazar, walking distance to most of the museums and must-see churches and other places. A lot of wonderful tapas bars, cafes, and restaurants are within one block. Also, some great flamenco places are nearby.
The building is excellently maintained, and the apartment is very clean, in fabulous condition and beautifully decorated. It is also supplied with a lot of important gadgets one needs when travelling -- such as maps, electric adapters, scotch tapes, threads and needles, etc. The only thing one has to keep in mind is that one bedroom (with the single bed) is a walk-through, which in our case wasn't a problem. Despite being in the heart of the city, the place is extremely quiet, and the only sound one can hear is ringing of bells of the Church of Santa Cruz across the street..
Maria met us on time and was extremely nice (although she had taken such meticulous care of everything at the very beginning that we had no need to reach out to her during our stay). We would definitely stay in the same place if we go to Seville again.