The apartment is great. It is well equipped and nicely designed. It has a good size and is comfortable.
There is 24hr doorman which was always available, friendly and helpful. It made me feel safer as well as the code-enabled access instead of keys.
Location is great and you can find plenty of restaurants, shops and offices at walking distance.
My only note is that Zona Rosa can be noisy EVERY night. As much as the apartment has good quality windows, the noise inevitably creeps in. It was not a problem for me, but I can see how for some people this can be a major problem.
Overall I really liked it and will definitely come back.