I came for the Day of the Dead festival this weekend, which is kind of a bust in itself; however, I enjoyed the museum. I checked out the Cotton Fields to Skyscrapers exhibit, and I thought it was really interesting. It traces the changes that have taken place in Charlotte and the towns/counties around us since the Civil War, and the whole thing was pretty wild. I am kind of a history geek, and I really like the interactive approach. The exhibit is pretty large, so you get a real feel for the eras that they're trying to recreate.
The Day of the Dead exhibit was kind of lame. I got there after they'd run out of sugar skulls, and there were no fancy dancers and only a few altars. I really like that holiday, so I'd hoped for more...however, I did enjoy the free museum admission, so I guess it worked out.