We had a great time staying at Nerea and Karlos' place, it is in a lovely part of the city and everything we wanted to see was within a walkable distance, with the old town just across the bridge. Nerea was very helpful, communication was nice and easy and they were even able to let us in slightly earlier when our travel plans changed! The apartment was as shown in the photos, very clean and great for our stay in Bilbao!