We had an excellent stay at Maria's place. It is conveniently located close to trams and metro. We had lot of guidance from the host regarding local and nearby places to visit. She in fact gave us a travel card which helped us immensely in kickstarting our travel in Bilbao. It is a 10 minute walk either to tram or metro station. If one is interested in cooking there are plenty of Super markets next door. The only negative point is smaller shower cubicle which may be a bit inconvenient for some people.