A great science center!! It's large and beautiful. It's no rival for the massive science museums I've seen in Philly and DC, but it's a great local attraction.
I've come here to see an exhibit, BodyWorlds, which was incredible. I've also been here for the Best of Phoenix A'Fare, an elegant evening out with food and drink. This place makes a spectacular event venue!
Short of special exhibits or events, just from what I saw, this place is a bit better for kids than for adults - it's not quite extensive enough to draw me there on a special trip. They seem to feature interesting exhibits failry often, though.