Maria's apartment is so incredibly beautiful! I loved all the books and art everywhere, the bathroom is simply gorgeous, and the enormous windows and small balconies looking over the street were ideal for people watching with my morning coffee. The apartment is so well situated with tons of cafés and shops nearby, and it's within very easy walking distance to major attractions such as the Puerta del Sol and Plaza Mayor!
Maria herself was lovely to communicate with; extremely timely with her responses and incredibly helpful. If I ever return to Madrid, I know where I'll be staying!