Outstanding experience!
My wife, I, and two small kids stayed in the apartment for 1 week in July. Communication with Ana was smooth as she responded to emails immediately. She also set up an easy check-in process with her aunt, who was waiting for us at the unit. The apartment can hardly be better located in BsAs: it is in a quiet and safe street close to the Recoleta cemetery and the main thoroughfares of Callao/SantaFe where public transport to anywhere in the city is found. Plenty of supermarkets/shops/restaurants/cafes in the area. It sits at the 1st floor of a nicely maintained building with door security. The interior is very nicely decorated with all tools and utilities needed for a comfortable stay. It's no huge but the spaces are so well distributed that we all felt very comfortable. Light sleepers might hear some traffic noise in the morning from the facing street, but we slept like babies the whole week. In summary, we have ben enjoying our stay in Ana's place and would certainly put it as our first option next time!