Carmelo made us feel very welcome and he was very helpful with suggestions for places to visit/restaurants/ how to get around Madrid and where the nearest supermarkets were. He provided maps, and there were guidebooks in the apartment that we were welcome to use. The apartment was really nicely decorated and had very clean and modern bathroom and kitchen. The only drawback was no air con, but a large fan was provided which did the trick. We would definitely stay here again if we come back to Madrid.