Daniel's place is situated comfortably within Recoleta, short walk to multiple metro stations. Very secure apartment, clean and tidy. He included great recommendations for restaurants and places to eat also - one of which was the best place we ate in Argentina. Very fast wifi and excellent air conditioning, which was needed!! We didn't meet Daniel in person, but his mother was always available and very friendly.
Would highly recommend staying at Daniel's place if you're visiting Buenos Aires!