Everything was great throughout our two night stay. The location was perfect, around ten minutes from prado museum and botanical garden and the museum of reina Isabel. Strategic location! We didn't get to meet Carmen, but her son was pretty awesome and nice and one day we got the chance to try his awesome natilla for breakfast. Other people were in the apartment too, but most of the time you cannot feel they are there. They aren't noisy, nor do they take Long time in the bathrooms. Had a great stay! Thank you! Oh and people in Madrid are so nice and helpful!