The apartment was wonderfull and it was just like the photos posted by the host. Also the position is perfect because there are three metro station around in less than 5 minutes walking. You'll find pubs, restaurants and shops just one step out the door, it's not noisy at night and the beds were very comfortable.
Unfortunately during our stay the wifi doesn't worked and the unique inconvenient is that the apartment doesn't have the lift and it's seemes that the apartment is on the 5th floor because the entrance is lower than the level of Plaza Mayor but considering that you're staying in heart of Madrid and in a such historical building, it's a good compromise.
Manuel was friendly and very helpfull, a very good host.
Absolutely recommended!