We stay at Juan's place for three nights and we are very happy with it. Juan is very kind and helpful. The apartment is well furnished and fully equipped. Great location. Most sights are within walking distance, 5 minutes to Puerta del Sol. We walked to everywhere. There are restaurants on the street and a small supermarket right cross street. We also enjoyed nice breakfast and lunch in his cafe next door and my daughters went to the cafe numerous time at night.
Will definitely like to stay here when visiting Madrid again.