The apartment was perfect for our stay. It is very well equipped with very reasonable price. We can live there for months without any issues.
The location is perfect, right next to the Plaza de Santa Ana with tons of nice restaurants around. Plaza Puerta del Sol is also near by within walking distance.
Carlos is a great host. Check-in and check-out was quick and simple. He is was very patience to show us all the amenities in the apartment(There were a lot to show). I can't find anything to complain about.
I would stay there again if we ever go to Madrid again. Highly recommended to anyone!