Susana and Emilio's place was super clean, with a wonderful little terrase to view the widest avenue in the world. In a safe area, close to public transit, and any type of restaurant or bar that you could want.
Emilio and his son Dario were super kind, and they provided a tonne of information about Buenos Aires. Great if you're new to the city. Communication was as easy as it gets. Well worth the the stay.
My only comment of caution is the street noise below. It is loud. If you are a light sleeper, pack earplugs.
Everything in their control was great!