This is almost to good to be true. The appartment is clean, old in a good way, well decorated and beautiful. And big! Six persons can stay without a problem. It's even better than on the pictures.
The location is fantastic, at one of the most beautiful squares of Buenos Aires. Think: bars (Todo Mundo, Dorrego), restaurants and live music; yes, tango as well. San Telmo is the best neighbourhood in town, we concluded after 8 days. Plaza the Mayo is an easy walk (20 minutes) and safe as well.
I stayed with Sheila with five friends and we enjoyed every minute of it. It can be a bit noisy at night, but inside you don't here anything. Sundaymarket is great and don't forget to visit the mercado. Airco, showers are okay. When we arrived, caretaker Gustavo made a late supper for us! The communication with Sheila was excellent. This is Buenos Aires at his best. Thanks Gustavo! Thanks Sheila!