Sergio is a wonderful host! He was so patient, and helpful in answering all our inquiries. He welcomed us with a couple bottles of beer, carried my luggage up to the apartment, found COVID testing information for us, provided suggestions for touring nearby places and booked an early morning taxi for us to the airport. With his help, we had a stress-free stay in Bilbao!
Location of the apartment is very good in a quiet neighborhood, easy walk to old town, near the river--we walked to the Guggenheim Museum along the river. There is a tram stop near the apartment which makes it easy to get around when you are tired (or lazy to walk). There is a full bathroom attached to the bedroom and a small toilet next to the kitchen. It was comfortable for the two of us.