Location is perfect! We was at the city center, every famous places were really near the apartment. You can walk only 2 min. From apartment to Plaza Mayor which is perfect! Housekeeping was very good. Patricia is very nice person, when we had a problem with the hot water, she helped immediately and solved the problem at the same time! Communicating with her is really easy. And also she left us orange juice, milk and cupcakes :) we love the place and we want to stay there again if we will be at Madrid again! Only one thing we didnt feel comfort: single beds were not so comfortable. But double bed was very comfort;)
In conclusion, you can choose this apartment if you stay in the center of Madrid and want to housekeeping is perfect and good communication and good price! Have a nice travel...