The appartement is nice, very clean and very well located (close to restaurants, markets, subways stations). Good place to stay if you are going to visit Madrid and stay a few days. And he let us leave our luggage in his appartement to be possible enjoy the city and catch it later
Also the host gave us a lot os privacy and he provides some guide books about Madrid (informations with what to do, what to visit in the city and how to go to each place).
But the heater was turned off at the night and we woke up feeling cold and in the last day we could not have hot water to take shower.