We stop here often on our way to Grandma's. I'm so gld we discovered it, because it's on a par with many expensive museums, and I can't believe it's free. Tax dollars at work for something I enjoy - what a treat!
I'm from Indiana but I find it fascinating anyway, as much of it doesn't seem Michigan-specific. Rather, it's a look through the history of much of the US. I love the scenes from the '60s and '70s; I noticed many items I had as a child. Also there are recreated movie theaters, schoolrooms, etc. - it's a very hands-on, fun place for kids.