I couldn't recommend Maria more as a host. As soon as I arrived she gave me tips about what to do in the area, maps, how to get around and safety precautions. Her home is beautiful and full of her amazing unique artwork. It's close to restaurants, shops and about a 10 minute leisurely walk to the subway. The bathroom is shared and make sure you can lift your suitcase up about 8-10 steps. Palermo is definitely where you want to stay. It's safe to go walking in the middle of the night. Would definitely stay here again next time I come to Buenos Aires