Uriel and Angel were very responsive and helpful, through both Airbnb messaging and WhatsApp. Their apartment was so comfortable and quiet, especially with a private patio, even though it was in the midst of Recoleta, and the bed (an important item for us) had just the right amount of firmness. And there were even snacks in the kitchen! Check-in instructions were very clear, and we were able to leave our bags at the security desk while we went sight-seeing for a few hours after we checked out. Location was convenient to everything, including the Recoleta cemetery and many parks - just a few minutes' walk. And across the street from the cemetery were restaurants and a brew pub.
Highly recommend the apartment to anyone who plans to visit Buenos Aires!