Araceli is a great host, and very kind , she gave me lot of tips during my stay, what area I should definitely see, what restaurants I should try, she game me some maps and tips the first day I arrive. This was a great start to visit the city.
The apartment itself is nice and big, perfect for 2, good for 3. There was two bedrooms but the second one I haven't been inside as I think it was not available. There is a nice supermarket just 2min walking from the apartment, the metro is 5min away, but in my 3 full days stay, I used the metro only 3 times, the buses are a better way to visit the city. The only thing that I would have like was the wifi but it was definitely stated on the page that there was none at the apartment, it's always nice to not use the roaming data on your phone which is limited.
The location itself of the apartment is close to the Zoo, and also from the beginning of the lengthy park that goes through the city, mostly the main visit would be the city center which is 20min away at walking distance or less in metro, and the east where the oceanografic and all the big building are, which a bus can take you near the apartment to this location.
Muchas gracias Araceli