Maria is a very charming host. The studio apartment is remarkably fresh, very modern, very clean, and very, very safe. The location is simply perfect for being in the center of things. It's an easy stroll (5 minutes) to Plaza Sol, and just around the corner from Plaza Mayor and Mercado San Miguel. For all day snacks and coffee there is a great gelato shop directly across the street. (Leave calorie counters home.)
I love this place and had a very hard time leaving. I can'twait to visit again soon!