Everything worked perfectly. Sergio brought us the keys even late at night. The apartment was very clean and is perfect for two people. The terrace has a super nice view and if your lucky some parrots may drop by in the morning. The apartment is not really in the middle of where the stuff happens in Buenos Aires, but the next subway station is only a few blocks away. Also, within walking distance you find nice coffees, restaurants and bars, all in the Palermo district. I would totally recommend this place.