I stayed at Pedro and Cristina's apartment for the best part of 5 months whilst studying in Buenos Aires and it was an absolute delight. Clean, modern, and most importantly, incredibly well-located for the vibrancy of Palermo; very much Buenos Aires' "in" neighbourhood. They could not do enough to help - Pedro himself comes to clean the apartment and replace the towels once a week and is not only completely responsive to any queries you may raise but a friendly face if you fancy a chat. The apartment can get noisy, but if this is an issue for you I'd really look at booking somewhere other than Buenos Aires to stay in; personally, I found it completely acceptable as part and parcel of city life. I was devastated to leave my little home but I hope the next traveller enjoys it as much as I did.