A nice small flat for two persons with an excellent location between Calle Mayor and the Opera. Narrow and quiet street with no traffic. A few minutes walk to the Opera, Plaza Mayor, and Puerta del Sol. Antonio is a likable and very responsive host. He answered promptly on messages throughout the stay, which in my case was 30 days.
The only cons were the lack of a stove in the kitchen and a bit creaky sounds from the floor. It is hard to make a proper pizza by microwaves or by an ordinary heating plate.