If you want authentic Buenos Aires, start it with your stay at Emma's apartment. We were greeted by our lovely host, Alberto and Emma, who gave us a personal tour of the apartment that Alberto himself had renovated. The house is much better than we had expected, with thoughtful touches everywhere, from Alberto's architectural work (he's an architect) to a manifesto he had written on history of Buenos Aires and what he seeks to offer through the Airbnb to his guests. We were very touched by the hospitality.
The apartment has everything, clean beds, linens, nicely renovated bathrooms, and of course books/pamphlets/memorabilia of cultural Buenos Aires. If you haven't come prepared on what to do and where to go in BA, the house has it all.
The location is great, it's in the heart of Palermo, close to many eateries, including the best parilla place, Don Julio, and my favorite fried chicken sandwich place Nola. Very walkable and safe, you'll have a great time when staying at Emma's place.
We hope to be back in Buenos Aires soon, and Emm'a place is where we'll return to!