Cristina's apartment is very well located in the city center, within walking distance to many important/landmark buildings in Buenos Aires. The apartment is in an old but very well maintained building, with a beautiful architecture. The apartment is also located within a few blocks from Florida street, which is a shopping street in BA for tourists.
Finally, Cristina is a great host!
Our communication with her was very easy and maintained throughout our stay in BA, and she was always offering us recommendations for places to visit and how to get to those places.
Overall, our stay in Cristina's apartment was very pleasant.