The location is better than most of the hotels in Madrid- you walked two minutes and you were in the heart of Madrid at the Puerta del Sol. The apartment was sparkling clean when we arrived and check-in/out was done extremely efficiently with the caretaker of the building showing us around as soon as we arrived. Carol herself was extremely professional and responded to messages literally seconds after they were sent. I would highly recommend her apartment to anyone looking to stay in Madrid- great value for money!