Fernando was a great host. He was extremely accommodating with our check-in/check-out times, and the apartment was not only clean and well maintained, but also full of little extra touches that went the extra mile (a week's stock of coffee and tea, candy, etc.).
I had a great stay, and Fernando always answered our messages within a few hours.
Also, for those concerned about safety, the building has a security guard, which is always a good thing to have (though often he seemed to be gone somewhere).