The exhibit is small. You'll probably spend about 30 minutes walking through before getting bored. The employees are terrible. They are no where to be found, and honestly not very kid friendly people.
Why we canceled our annual membership:
We arrived at 7:04 on a Saturday evening after driving from Queen Creek. Upon arriving the doors were locked. A women came to the door and stated they close 90 minutes before their stated closing time on google and on the tickets and hours page (8pm is the closing time, but you cannot enter after 6:30pm). We even let the manager know we had annual passes, and never spend more than 30 minutes inside. Nope, they turned us away. Who would turn away a cute little two year old? Jerks.
I contacted management on Facebook to let them know about the issue and that their hours and tickets page does not state this. Kasey the "general manager" called me. Absolutely rude and wanted to argue more than take responsibility of their website lacking information.
Spend your family's quality time and hard earned money elsewhere. There's a lot of places around the valley that will keep kids entertained much longer than this place.