We very much enjoyed our stay in this very stylish and comfortable apartment. I have been in touch with Constanza, the host's manager, who was very accommodating and helpful upon our arrival. Her offices are on the lower ground floor of the building which was comforting to know, and she was at hand whenever we needed help. The apartment is as beautiful as described and photographed in the listing, one can see the architect's work. An older review said the apartment is on the second floor, which I needed to know for security reasons, but it is in fact on the first floor, i.e. one floor up from street level. The area did however feel very safe and comfortable. Julian has a few more airbnb apartments in the building, something to suit anyone.
Thank you again Julian and Constanza, we'd be happy to recommend you and come back some other time.