Raúl was really (or better say REALLY) responsible host!
On a second day of our stay the fridge in the apartment got broken :( After we called Raul he came and replaced the fridge!!!
The apartment itself was clean and nice. It is about 10-15 min from subway, located on very quite street. 5 min far from the apartment you find "city bus tours" stop as well.
I would definitely recommend everyone to choose this apartment during your stay in Madrid! Raul will make sure that nothing disturbs you and you can enjoy your vacation there :)