We spent 4 nights in Bilbao at Manu's apartment, which is perfectly located. Travel from the airport was quick (and cheap - buy a Barik travel card for use on buses, trams, and metro) to the modern central bus station, 5 minutes walk to the apartment. From there you could walk anywhere in Bilbao, but the tram stops outside, going to all the tourist sites. There is also a metro stop across the street. Despite all the local activities, the apartment was quiet and relaxing. Two good size double rooms plus a single, two bathrooms with excellent showers, a well-stocked kitchen and good WiFi.
Manu is a superb host. He sent messages before arrival with clear travel instructions and ideas for visits during our stay. On arrival he was welcoming and kind, and provided us with supplies for breakfast. His recommendations were excellent. He knows everything about Bilbao and loves his city!
We also fell in love with Bilbao. We visited the Guggenheim, the Old City, the market, took the funicular railway for amazing views of the city at sunset, and walked the city streets. We took the metro to Portugalette and walked along the beach, and a day trip to San Sebastian by bus. People were welcoming and patient as we tried our Spanish! We will return to Bilbao and recommend Manu's apartment to everyone.