We had a really pleasant stay in Bilbao and in Daniels and his aunt’s apartment. Daniel and his aunt are sweet and helpful but only Daniel speaks English.
The location is perfect with old town just outside the door and a 5 minute walk to the metro Casco Viejo and the tram station Ribera. The room we rented was clean and comfortable and the same goes for the shared bathroom.
As written in the information the room is quiet even though the apartment is located in old town. We had no problem with noise.
Daniels description of the room and location certainly lived with up to your expectation and little bit more :)