Host was very nice and accomodating, and apartment was clean and in a good area of Palermo. We had to wait a few days for a second set of keys as we were a couple, so I would advise letting them know if you need 2 sets. Also the main window onto the street didn't lock closed. Brian assured us security was tight and nothing would happen, but my wife is from Buenos Aires and was very paranoid so we left all our valuables in a friends apartment. I'm sure this has been fixed by now but worth checking.