We loved the apartment. It was beautifully decorated and spotlessly clean. We stayed when it was very hot, and the aircon worked wonderfully, although the building is quite cool anyway so we didn't need it on all the time. Everything was provided for and communication was excellent. The location was wonderful and even though the metro wasn't working, we were able to walk everywhere we wanted to even with a 4 year old! I would highly recommend this as a place to stay to get the most out of Madrid and it was absolutely perfect for a stay with children. I hope to return one day.