Next to the tube entrance and with a perfect, big parking space, the location of the apartment is really good to visit not only Bilbao but also Barakaldo itself. There are a lot of shops, bars, and playgrounds in the direct neigbourhood of the apartment. Jennifer is super sweet and provides you with all tips (brochures, maps and even a tube card available), checks in regularly and provided a nice welcoming package with some snacks, coffee, and even a bottle of wine. We felt very welcome.
We did find the apartment (or maybe the neighbours) a bit noisy but that is nothing really something Jennifer and Carlos can do anything about.
All in all a very good option if you want to visit Bilbao and the coast.