There are two amazing things about Mercedes's apartment - location and quietness (which you learn to appreciate after a long day being outside). The apartment is literally on plaza de encarnacion and minutes from everywhere in the old city. The windows of the apartment are directed inside the building and not to the street which thank g-d gives you a good night sleep. In other places I stayed at, that was a luxury. We really the enjoyed coffee places right by the apartment - I highly recommend the Creme de la Creme - one of the best croissant I've ever had.
Thank you Mercedes for a great memorable stay.