Joseba's house is very cozy and it's in a great position to visit the city by walking (3 minutes from Guggenheim and very close to other main attraction of the city). Joseba has been a wonderful host, very interested in the people of the house and has created a nice international and involving atmosphere between the various guests of the house.
He also gives you useful and interesting tips about Bilbao and surroundings and surfing as well. The breakfast was good and healthy. The apartment is well-organized and clean. Very recommended!