Kristian is an outstanding host and my time in the apartment was superb. He took care of all my requests and thought of relevant details very well - for instance gave a a package with a mask and desinfection gel to me when checkin in; highly relevant in these times! He can give you good recommendations in the area and some restaurants give a even discount when you mention that you know him. The apartment is in the best location of Madrid and all relevant tourist hotspots are easily reachable from there.