My wife and I had originally planned a 5-month stay in the apartment — which is actually a house separated from the main house, where the owner lives, with its own individual entrance — and we liked it so much we booked another month. The only reason we're not still there is that somebody else had rented the place.
The apartment is more spacious than the pictures show. I had imagined its western exposure would make it very warm in the late afternoon, but buildings and trees shield it from the Sun. In any case, the air-conditioning, which is also a heater, has power enough to shield you from any drastic temperatures.
Before choosing this apartment, we looked at every option on AirBnB at this price range, and we're sure we made the best choice. Both my wife and I work from home, so a quiet place was absolutely necessary. I don't think there is another place where you can be so close to everything you need, including wonderful restaurants and cafés, and still have that much peace.
As I said, the owner lives next door, and he was able to help us immediately every time we faced any difficulties (which were very few, by the way). At a hotel you would not be more promptly helped, nor with more courtesy.
If I go back to Buenos Aires, this apartment would be my first choice.