We had a great time at Olga's apartment. It's very stylishly decorated, with all the essentials and a bit extra (it was the only place we stayed in Spain that gave us an actual kettle as well as a cafetiere). Olga had generously left us a comprehensive booklet of local delicacies and where to find them, and was also extremely quick at replying to messages and helping us to book taxis etc. We didn't get the chance to meet Olga, but we did get to meet her lovely father who came to tighten the bed frame for us when a screw came loose. The touch of having aircon both in the bedroom and in the main room was a godsend, and the check-in process was nice and faff-free.
The only thing I can say is that the apartment is quite far (around 30-35 min walk) from the attractions such as Plaza de Espana and Parque de Maria Luisa, as well as from the bus station. We didn't mind the walk there in the cool mornings but in the hot afternoons we opted for Uber a couple of times which was an added expense - but that was our fault for not checking the exact location before booking!
Thank you for a really lovely stay Olga!