We had a fabulous time in Madrid staying at Alejandro's apartment.
Although it is located away from the city centre there are several metro stations close by so there are plenty of options to get into the city centre. It was also well located and simply to get to and from the airport.
Alejandro was a fantastic host, friendly and accommodating with our check in and check out times. He had also left plenty of suggestions for eating out and information on things to do in Madrid.
I would highly recommend Alejandro's place and would definitely stay again if I ever go back to Madrid.