2.5 review as this place just wasn't for me. I took my 21 month old daughter hoping that it would be something we could both enjoy. Being that it's summer in AZ, I wanted to avoid the zoo and figured this was a nice alternative. I was wrong. The atrium was grossly hot & humid. Maybe something to expect but I unfortunately didn't. It wasn't enjoyable, no matter how beautiful the butterflies are. My little girl loved it, but due to being scared that she would touch one (which is forbidden) I carried her the entire time. So if you come with kids who are hands-on, be expected to carry them.
I would say my biggest reason for only giving 2.5 stars was the admission price. It's way too much in comparison for the time you will spend. Two adults was over $40 while my daughter was free. We spent an hour there. So it was just not worth it and we won't be returning. Hopefully the aquarium they are building next door won't be as big of a disappointment.