My almost 3-year-old son loved this place! It's a nice respite during the miserable summer weather. It's perfect for kids his age. There was something for all interests--visual, art, tactile, everything! I love that all the rooms are kid-sized, including the sinks in the bathroom and a separate/lower hand-rail on the stairs
Probably not the best value for crawlers or older kids. But for 2-5 yr-olds, it's a wonderful place! The only annoying part are the parents who don't lead their kids by example. Saw some pretty poorly-behaved, rude, and bully kids there. But that has nothing to do with the museum. Just a sad commentary of the lack-of parenting skills out there.
Anyway, we love the museum and think that it's the best $9/person we've spent all summer!