David always responded quickly. His father is very friendly and helped us very quickly when we once had a problem with the water heater. Thanks a lot for this! The location of the apartment is great! Metro, buses but also on foot you can get everywhere quickly. In the apartment is everything that is necessary. I was in the apartment for 2 weeks with 2 children and had to cook a lot myself. If you missing something, you can buy everything around the corner. There is only one minus: all windows face the inner courtyard (patio). It's hard to imagine what kind of weather is outside. But in Madrid you don't stay in apartment, you go outside. We also liked to have breakfast in the café next door, we were often in the center, in Retiro Park.
Thank you David and best wishes to your father!