We had an overnight layover in Madrid and Carlos’s place couldn’t have been more convenient to the airport. It really is no more than 15 minutes door-to-door on the subway, and Carlos also offered to pick us up from the airport and drop us off (at 6:00am!) for the cost of the subway tickets. The bed is a true double and very comfortable. And Carlos is lovely and responsive to communication. Would happily stay with him again!