The Hotel Bilbao Jardines is located in the heart of the city so you won't need to rely on public transport to get around. It's right next to a metro station and the square where the buses leave for the airport. It was opened in 2005, and the facilities are well-maintained and very comfortable. The staff are kind and the price is also reasonable. The parquet floors can be a bit noisy, but for 60.00€ a night at a 2-star hotel in the center of Bilbao, you couldn't ask for more. I'd go back.