One of the best all-around AirBNB experiences I have had. In terms of the basics: 1. The location is unbeatable. Simultaneously in the middle of Bilbao's Casco Viejo, next to the Plaza Nueva, but also on a relatively quiet street. 2. The price was VERY affordable, especially given the location and that weekly laundry is included. 3. The bed was very comfy (if you like firm mattresses like I do), however the bed frame is very small. If you are 6'2" (1.87m), then you won't fit in it. 4. Having a mini fridge next to the bed is very convenient.
For long term stays, the room is ideal in that it has LOTS of storage. I spent the first month of a 6 month stay here and I had more than enough storage for two suitcases full of clothes, shoes, books, etc.
Arantxa was an amazingly kind and welcoming host. She let me use her espresso machine, as well as spices/olive oil from her fully stocked spice rack. Beyond that, she allowed me to stay during the entire month of December and made sure to make me feel welcome even as she had family over for the holidays. It really made me feel like I was staying with family. The fact that the apartment is an artist's workshop instead of a sterile tourist apartment also made me feel very much at home. Overall, an ideal experience for a longer stay if you plan to visit the Basque Country and prefer to stay in one place over a longer period of time.