Sadly we only had time for a quick visit here as we had a long journey ahead. We'd been wanting to see the Spruce Goose for a long time so decided to visit anyway. We were really impressed with this attraction. All the exhibits were clearly explained and the volunteer docents were very helpful too.
A note on visiting the Spruce Goose: you can climb up and go inside a small area as part of your standard entrance fee, but if you want to see more of the plane there are special VIP tours available for an extra fee. I think you need to call ahead for more information.
We will definitely return, for a longer visit next time.