Marcos is the nicest host I've dealt with. First the apartment is great, just like in the pictures, the location cannot be better and the communication with him was always pretty easy. I actually made a mistake with the reservation making it one night short, Marcos was pretty quick to reply when I realized that (once we were already there) and modified the reservation to extended it for one more night. The next day we totally lost track of time and got to the apartment 3 hours after we were supposed to check out, Marcos was already there trying to get ahold of us and the next guests where waiting on us, pretty bad from our side. With all that Marcos always behaved with the utmost respect and understanding. I would definitely recommend staying here to anybody visiting Buenos Aires and hope to be back myself sometime.