We had a very lovely stay in Bilbao at Juan Carlos’s apartment. The location is very good - a quiet part of town but it felt safe and was within walking distance to all the major sights and a metro station. Check in was easy and the team were really responsive and communicated well ahead of time.
I hadn’t quite understood the height of the second sleeping space although it is marked in one of the photos, so just a note of caution that if you’re using the sofa bed in the mezzanine area, you can’t stand up and the steps up to it don’t have a hand rail on one side - not ideal if you’re tired, tall, or nervous around heights!