A very nice, quiet, clean and spacious place, very conveniently located by the old city. It provided all the expected facilities, and a warm and friendly welcome by Amaya who checked us in very efficiently. We had a lovely stay.
It would have been nice if over our 6 nights there was a change of linen/towels and a couple of hand towels for the kitchen, but this is a minor issue. Also, the oven is a small microwave/grill one, so don't plan and serious roasting, but all the rest of the kitchen is very good!
The big issue is parking, but this is not Nerea's fault - to the contrary they gave us all possible guidance on how to deal with it - but parking in Bilbao is a nightmare, so either be prepared to pay a lot of money for an underground parking space during your entire stay, or run around to deal with the pathetic curbside parking system.
Regardless of the parking thing though, it is a great place that I am very happy to recommend!