Ok, I'm a space geek - I have to admit that up front. I've to the Kennedy Space Center in Florida and the Rocket and Space Center in Huntsville Alabama for both pleasure as well as business.
I took away one star just because I'm biased towards all things space and.don't want to sound like a cheerleader for NASA, which like any super large organization that interacts with government does screw up on occasion.
With those disclaimers out of the way, one of the things NASA has always done well is promote itself and this display is no different.
There is plenty for all to see, play with, and buy. There is something for all ages and all educational levels. It's impressive and shouldn't be missed. Allow plenty of time - we were there for four hours and I could have easily filled a couple additional hours.
Look for the cows. That was an unexpected bonus.