Such a lovely apartment to stay at in Madrid. Antonio was very helpful at meeting me and showing me the flat. The location is great, right off the main street of Gran Vía which allows for access to 2 Metro stops and quick 10-15 minute walk to sights in the center part of the city.
The apartment was clean and enough space for 3-4 people. Note the apartment is above a street with restaurants and so there is some noise at night.
Overall such a great place to stay.