Juan Carlos was a super-helpful and interesting host. Everything we needed was provided and the apartment was exactly as described. The neighbourhood was ideal - very central and walking distance to the main urban centres (including Retiro Park, the cathedral and palace, Sol and Cheuca). Great bars and coffee shops on the doorstep and the area had an energetic, friendly and international vibe.
I turned up with an extra friend because of some confusion on my behalf before I left for Spain - Juan was gracious and fixed the problem straight away, nothing seemed too much trouble.