We havent been, but have this down on our schedule for 6 weeks time, we have heard its very good, check out their website!.
The cost is $9.50 for adults and $6.75 for children+tax
Science Center is good...especially if it is a rainy day...If you have your own car while you are there..the MOSI in Tampa is worth the trip too, and its only 1hr away.