I`ll write in english so that everyone knows how was our experience. It was all perfect! The apartment is just awesome. Kitchen, bedroom, bathroom and all was very very clean and organized. It all works fine.
Location is very good, easy to get a cab or walk to some of BUE attractions like Floralis Generica and Japanese Garden. You can also have dinner, breakfast, a quick coffe at noon or buy something to eat at the apartment at a few blocks away.
At least, Rocio and Nicolas were very VERY helpful with great tips and careful with our stay. We would definitely recommend their home to everyone willing to go to Buenos Aires. You will totally love it!