Maria's place is a wonderful location for retreating and relaxing after a long day. Not only is it in a great location with lots of bars and restaurants within quick walking distance, but it also is very quiet at night - it's probably the most quiet place I stayed in during my entire time in Buenos Aires, and I stayed in 6 other locations. The check in was also very easy, and Maria is a very accommodating host. I highly recommend her home if you are considering staying in the San Telmo area.