We had a great stay at Serafin's apartment. He met us promptly and provided some very good recommendations on what to do and see in Bilbao. The apartment is well equipped and very comfortable. The location is very good if you are travelling by car with easy access to and from major roads. There is no road noise since it is on a minor side street. It's a easy walk downhill to the old town, although what goes down must come up. Overall, highly recommended.