We had a great time both in Madrid as well as in the apartment. The place is fully equipped with everything you need and the host was very nice and welcoming. The location is pretty good, too - right in the city center with lots of bars and restaurants nearby.
We found it very clean and nicely furnished. The description was 100% precise which is pretty hard to find with other flats in Madrid (we made some pretty bad experience before). So we can fully recommend this place.