Yes, they do wand everyone, to make sure they don't have cell phones/devices, but it's less invasive than a TSA wand experience.

I agree on the fun-ness - my daughter had a blast taking the test.

One suggestion: we went during a really slow time - when you check the Prometrics calendar, go for the hours when most people are at work or not wide awake yet. We went first thing in the morning and there were only 2 other people in a facility that serves ~25.