Great place, central location with easy and fast access (5-10 min by foot) to the most important destinations in Bilbao (Guggenheim, Casco Viejo, etc). If you are traveling by car, underground parking is just around the corner (E16/D), what's really helpful as city itself is totaly pedestrian friendly and finding parking place on the street can be tricky.
Marco is super helpful, open guy who will guide you through the city and will recommend you places to eat whatever your preferences are!