My wife stayed for 3 weeks and we are very satisfied with the apartment.
The apartment was very clean and modern in a building with gated security around the clock. The guards are very helpful with any questions and will call for taxis if you need it. The 16th floor gives an awesome view of Buenos Aires. The location is close to many of the restaurants and attractions of Palermo.
Maria was extremely helpful and will answer any questions or information you need. She will have a bottle of wine waiting for you in the room.
We highly recommend this apartment :)