Benoit Burette
Google
Recent, modern facilities with everything you need to be independent
This apartment combines a very central location and quiet nights, I feel it is the best of both worlds.
I was a little bit worried about the bunk bed, and how convenient it would be but they are very well built, stable and very comfortable. Also if you have 1 or 2 small kids they can sleep while you're enjoying the rest of the evening (a sliding door allows to isolate the bedroom from the rest of the apartment, awesome..)
Owner is extremely cautious about your well-being and will go above and beyond to make sure you're satisfied with the facilities
Tip: Bilbao to have been build around socializing with people, locals seem permanently hooked to pintxos and tapas bars, also plenty of kids playgrounds, really optimal for families even with toddlers