As everyone else has commented, Graciela is a wonderful and kind hostess - she has a fountain of recommendations for things to do and see, and does everything she can to insure that you're comfortable. It was my first visit to Buenos Aires, and I was so grateful for her help arranging transport from the international airport. She has travelled extensively herself, and knows what assistance travelers will need. Her home is centrally located - lots of restaurants and cafes (and the subway) within walking distance, and the Recoleta Cemetery just down the street. I felt safe and comfortable staying with her and would highly recommend her place!