We've been to tons of kids museums around the East Coast and Midwest so I'm pretty confident in giving a rating of very good. Almost all the exhibits were working and had their supplies (that's really a problem at kid museums.) We were there on a Friday afternoon and it wasn't packed and every child had a parent/caregiver who was actually paying attention to their kid and not gossiping with their friend while heck broke loose.
It's not a huge place. If you've been to Indianapolis or Philadelphia, you'll feel that its small but what it lacks in size, it makes up in quality.
I have four kids, ages 2 to 10. They were all happy. Ok, my 10-year-old is a science geek and usually is looking for a science museum. If he had been by himself, he would have been bored but he had his siblings to interact with too.
I loved that they tried to make the museum have some personalization with stuff about Naples in it...the sea area, the Everglades...even the weather station.
And the restaurant was supposed to be taking place in India so you had the cultural enrichment and some things that I didn't know about it. It appeared to be an exhibit that they could change countries too.
I will say that I saw some employees that were more playing than straightening up. And one gave my son a hard time for continuing to fish at the boat area when there were no other kids around looking for a pole. In fact, there was a pole free still. So I thought that was kind of jerky since he wasn't preventing others from playing.