Great place to hang out and spend several hours. There are a bunch of different areas that kids can loose them selves in. The museum is almost 100% interactive which makes for a very fun experience. My son, who is 5, loves the "tree house" structure on the 1st floor and the noodle forest on the 3rd floor. He loves to make multiple visits to each area.
I one draw back is my 10 year old feels she is too old for it. This makes it hard to get everyone excited about it being a family activity. Also, everyone is the same price and when the older child and the adult can't experience the activities that is an issue.