Sergio’s apartment is exactly the reason why you’d pick an Airbnb over a generic hotel during your travels. The apartment was lovely and comfortable with a personal touch that made us feel right at home. The location of the apartment was ideal as well (within walking distance of everything of interest between the new town and old town). Communication and check in was a breeze as well - Sergio was readily available to provide all the information that we needed.
Whist we had a hiccup with the water heater (none of which was the fault of the host), Sergio was helpful and got a plumber to sort it out quite immediately.
All in all, I’d highly recommend this place for a stay in Bilbao!