Even though we didn't meet Maria or Jorge in person everything worked just fine. A friend of them handed us the keys and explained everything - she was very friendly and welcoming. The apartment is small but has everything you need. The location is great and we found great places for breakfast and dinner in the immediate area. If you enjoy walking you don't even need a metro pass - puerta del sol can be reached within approx. 20 mins. Overall a very good experience!