This is a really great apartment. It is very stylish with polished wood floors, a state of the art kitchen and a walk-in "wet room" style shower. Everything was beautifully clean and there were a lot of extras (such as bread, coffee, tea, shower gel) supplied which was very useful as we arrived late in the evening. The communication with the host was excellent - we had a minor problem with the cooker while we were here and she responded to my query within a few minutes.
The apartment is well situated for all the sites of Madrid and there are loads of restaurants and two big supermarkets within two minutes walk of the door. Highly recommended.