Unai and Sara well exceeded our expectations. Their communication was diligent, consistent, and reliable. They picked us up from the train station and took us to their home for $10 less than the taxi rate. Their home is about a 20 minute ride from the Bilbao city center, but they can drive you there for $10 less than the taxi rate. They will also offer plenty of tourist tips. As a matter of fact, they helped us plan our trip to the nearby city of Donostia - they even booked the bus trip for us.
Their home was clean and completely renovated/modern. It is on a mountain and has stunning views. The best hosts we have had so far!