Lucas was very attentive and received us in the apartment to hand us the keys, show the apartment and gave us some tips on our itinerary. He was also very helpful even before we arrived by promptly answering the doubts we had regarding taxi pick up at the airport, currency, etc. The apartment is as described in the ad and photos. It is small, but confortable and has everything a couple needs (AC, towels, linens, all kitchen apparel - we made breakfast almost every day). The bathroom is very clean, strong shower and the bed is very confortable. The only downside is that the curtain behind the bed does not keep away much the light, but that wasn't a problem for us.
The neighborhood is just excelent, one of the best in Buenos Aires. There is a huge supermarket less than a block away, a pharmacy and close by restaurants. Tip: don't miss the restaurante called Millon in Calle Parana in Recoleta.