Carmen was a great host and this apartment was perfect for our trip to Madrid. Carmen went above and beyond by allowing us to check-in early, and being so accommodating for the early arrival (our train arrived a few hours before the standard check-in time). She was also very quick to respond to all of our questions. The apartment was very clean, modern, and in a great area of town for walking - just a few minute walk to Plaza Mayor. I would definitely recommend this place to anyone traveling through Madrid!