I stayed in Madrid for three days and had a great time at Benito's apartment. It's a very clean and nice apartment and it had everything that one would need. It looks just like on the pictures. Benito himself was a great host and provided me with information whenever I requested it, even though he was clearly having a busy weekend. He was very easy going and communicative for the brief periods we were both at the flat (he speaks very well in English and Spanish and even manages in French as well).
The location is probably the best asset of the apartment. Located in a quiet street in the centre of Madrid (like, really the center) it's the perfect base camp for exploring all the beautiful city of Madrid has to offer.
If I'm coming back to Madrid, I'm definitely staying there again!