Overall, we had a good stay in Pablo's place. It was accurate with the picture. It was very centrally located. The Rastro market was right below. As the place is located in the middle of the square, please be prepared for the noise outside even if the unit is on the 4th floor. And yes, it can be quite a hike going up.
Pablo was very responsive with our questions even if he was not in Madrid that time. The unit was well equipped and clean. It was very good value for money.