Carmelo was the best host I've met in my airb&b trips! From the easy booking of the apartment through the arrival instructions he provided. And of course The clean and nice apartment that located in the heart of Madrid, a walk distance to everywhere..and 2 min from metro station. As well, he let us stay longer after the normal checkout time because we had a late flight! He gave us great insider tips on Madrid. If you are going to Madrid this is the place to be!