Juana's apartment is as shown in the photos clean and neat. We did not meet her but the arrangements to meet with the security guards at the gate to the apartment was easy though communication in English was not possible.
The location is not close to Madrid but the local train was an easy 25 minutes ride to the Centre Madrid. Do note that you can purchase a T-10 ticket which can be shared on the same trip. We found an eatery just opposite the apartment which serves delicious meals. We had a good dinner there. I would recommend Juana's apartment.