Josefina's apartment was very comfortable and it is located in a safe, pleasant street and neighborhood. She was very helpful through email correspondence, and so was her motherin-law, who we met upon arrival (Josefina was out of town). I highly recommend Josefina's place, and would certainly stay there again. It is close to many interesting areas of the city, which you can walk to (just be aware of crazy drivers though - Baires is a very walkable city, but unfortunately drivers there have no respect for pedestrians). It is not too close to the subway (around 8 blocks or so), but it is a pleasant walk. There are good businesses around the apartment, including small markets and a great empanadas joint just a few houses down the sidewalk! Stay here if you're looking for a comfortable, clean, practical place in a safe area of B.Aires.