Great place to stay if you have a car and don't want to deal with the aggravation of parking downtown. It's convenient to buses that get you down to the action promptly.
Aser is a font of information and has maps and brochures for a wide variety of activities all over the País Vasco.
Be aware if you're sensitive to scents/perfume, there are automatic spray-dispensers on the walls throughout, some at eye level. Citronella-y.