Good value for money if you'd like to stay in Bilbao's "Casco Viejo". It was easy to find, clean, and the host was responsive. The room I rented was very basic, but for the price I wasn't expecting any luxury. If you're extremely sensitive to noise, you'd better look for something else (squeaky floors).
It's clearly written in the description that access to the kitchen isn't included and I wasn't expecting to "use" it, but it would be nice if the host would allow access to the kitchen for a glass of tap water.
Negative: during check-in I experienced an uncomfortable situation in which the host accused me of not having the nationality that my valid passport with which I travel around the world clearly shows I have. I was shocked. At the end it wasn't a big deal, but also not a nice check-in experience.