We had a wonderful stay at Ana's apartment. My boyfriend and I stayed for two months and the apartment was very clean. Ana and her husband live in Australia but still they are really easy to contact. Also, Nicolas, their administrator in Buenos Aires, is very friendly, helpful and available.
The apartment is quite small but you have everything you need. The only "negative" point is the kitchen which is very small, but you get easily used to it.
We really loved the fact that despite of their absence, they leave notes in the apartment for their guests with many pieces of advice on what to do in town.
We have nothing wrong to say, we really felt at home and Nicolas made himself available whenever we needed him.
Thank you