The communication with the host was easy and he (the co-host, actually) even made our entire stay even easier, while helping us throughout different activities in Madrid, incl. getting to the apartment and the nearby restaurants and sightseeings. He was nice and polite!
The apartment itself is close to almost everything Madrid counts for and it's even better, when you like to take a walk around. There're many places with delicious food around. The apartment is nice for a couple or a small family. It is clean and has all accomodations if you require to cook food yourself.