First of all, if you're lucky enough to find out this place is available for your upcoming trip to Bilbao, you should book it right now without hesitation.
Paulina is literally the best host I've ever met on Airbnb, and I travelled quite for a while. I'm not going to describe great place, location, sparkling clean apartments, towels, shampoo - all that goes without saying. But what matters the most - I've got a real local-like experience, as if I'd live in amazing Basque Country myself, including also getting to know history and local culture. Thanks to Paulina's advices on the trip, I managed to cover everything planned for this trip despite the tight schedule and weather conditions. I'm very grateful for the warm welcoming, making me willing to come back to my temporary home in the evening. It was a marvelous experience, and I'd give six stars here, if I could.