The place is perfectly located, especially if you are going to visit Santiago Bernabeu stadium, it is very close. As well, the metro is close and you can easily get to the city centre. The place is quite old (especially electrical sockets should be fixed and pillows should be replaced), but at the same time the place is clean and has all the basics that are needed for staying. The place is located at 21st floor, what provides beautiful views over Madrid, especially during sunset. The only thing to be careful about this height is weather – there was a strong wind and rain during our stay, so apartment got really cold and central heating was not able to help the situation. But again with extra blanket you can survive couple of days. In overall the place is ok, but personally to me it was not comfortable, because it is quite old.
The host is amazing, very friendly, supportive and responsive! I believe you will not have any problems in communication with him.