I can really recommend this place for your stay in Bilbao: a very helpful host (responding quickly to all questions you might have) and a great, well-equipped apartment. Everything you need is available. We really appreciated that coffee, tea and olive oil was foreseen. The location is superb: Guggenheim and Casco Viejo are easily reachable by foot. The metro is just around the corner. The Barik metro card (provided by the host) is really useful. We really took advantage of it to explore the city and its surroundings.