Fernando was extremely accommodating. He offered to pick us up from the metro stop because we were coming in later at night. Upon arrival, he had everything prepared, offered us maps, wifi, (and bread and cheese for the morning!). His place was clean and organized, and was in a quiet location, about a 30 minute walk to the center.
Upon realizing that we needed to print out our boarding passes, Fernando graciously offered to use his printer to help us out (he conveniently lives upstairs). He also let us use the washing machine (no dryer) and let us hang out clothes on his wires.
We had a lovely time staying in Porto at Fernando's apartment, and he was a wonderfully kind, and caring host. Highly recommended!