We had a lovely time at Inigo's apartment. He was very friendly, awaited our (late) arrival and had filled up the refrigerator we basic food and drinks when we arrived - so a nice touch! Inigo was very kind and accommodating regarding tips and recommendations, there is even a binder with all the relevant information about the city, restaurants, transport, sights, etc.: very professional! In short, you could not ask for a better host. The apartment itself is quite nice with a lot of elegant design and functioning units. If it is really, really hot in the summer it can quite warm though... Its location is rather central with short distance to city centre, train stations, etc., but maybe not the most optimal in Bilbao... All in all, a very wonderful stay in a great apartment and a formidable host.