Our experience in Tiffy's Airbnb in BA was incredibly wonderful. The location is perfect for walking around and exploring Recoleta. It is also blocks away from the metro which made getting around the city very easy (make sure you get a SUBE card at the loteria right next door to the apartment).
Tiffy was very helpful. We got into BA very late and she was more than happy to accommodate us. She was very good at explaining things and was only a message away if we needed her.
I couldn't recommend this Airbnb enough if you are traveling to BA.