Excellent location in the heart of La Latina. Tons of restaurants and shops around in a vibrant area. Easy walk to Plaza Mayor and Royal Palace, as well as Gran Via and even down to El Retiro. The apartment itself is wonderful, spotless, and nicely decorated.
Note: It can get a bit loud in the front bedroom on weekend nights due to a tavern across the street with late night Mandrileños eating/drinking late into the night, so bring ear plugs on weekends.