We spent a month here and had a wonderful stay. Carolina was fantastic about responding to emails quickly and helping us address little things that came up.
The apartment is as beautiful as it looks in the photos. We spent most of the time in the lovely living room with its tall ceiling and wooden windows overlooking the inner courtyard. We arrived during a warm and rainy period so there were a few mosquitos in the courtyard, but once it cooled down they went away. The bedroom is small but very quiet and perfect for sleeping. The apartment is in the middle of the block so it is well sheltered and protected from noise. We felt very safe there.
The location is on a quiet residential street, around the corner from two main streets where you can meet all your daily needs: Supermarket, bank, pharmacy, etc. The neighborhood is pretty down to earth and local-serving, about ~12 minute walking distance from the nightlife and hip atmosphere of Palermo Hollywood, where you will find most tourists.
Restaurants: We loved Pipi Cucu, an eclectic bohemian restaurant with live music and fantastic service. Healthy lunch options are limited, but the franchise Tea Connection has a branch nearby where you can get great salads and other healthy options.