I'm not usually a fan of minimalist giganticus, but I truly "get" the Bilbao exhibit. I'd love the experience of walking around and through the elegantly curved and free-standing structures.
Hurray! A positive statement.
So, I gather you've been there and walked around it.
I'd be interested in your other ideas re the Bilbao. We haven't gotten there yet; I teach modern architecture in the spring, and I would relish personal experiences (or even images) to aid in the discussion.
You can even reply privately if you prefer.
Thanks.