Ralf's apartment in Palermo was a great introduction to Buenos Aires. It was located close to public transportation, easy to get cabs and ride share, close to dozens of restaurants and even money exchange. We ended up using almost all types of transport and all were conveniently only a few blocks away. There is security outside the building so there's never a lack of safety.
The apartment itself has a breathtaking view of the entire city, multiple decks and even though we didn't get to use it the hot tub looked like it would've been perfect for a warm day.
Everything from checkin, organizing cabs ahead of time, checkout and in between was handled perfectly. Would definitely stay here again!