We enjoyed our stay at Josune's apartment, it is exactly as it appears in the photographs. The bed and the sofa are both very comfortable, the shower is good and it was warm (important in February). All the appliances we used and the wi-fi worked well.
Everyone we spoke to in Bilbao was really friendly and helpful, including Josune (who was very patient when we got lost on our way to the apartment the first time).
The apartment is a reasonable walk from the old town, faster than we expected. We walked everywhere in the town centre and only used the car for trips out of town. We did not find the road system easy with a map, if you have a satnav it would help a lot, we used our smart phone in the end. The apartment is quite close to the motorway and actually not hard to find once you know what you are doing!