We visited the museum this summer and they boasted that they were kid friendly and that you could wander around at your leisure.
We brought our two children with us and they were excited to be there. We walked through the exhibits in no particular order which apparently annoyed one of the workers. He very rudely told us that we needed to follow the "correct" path through the museum after we had been told there was no path to follow through the museum. Needless to say we left right after that.
I did write an email to the head of the museum about our experience and he was very apologetic and confirmed that there is no set path through the exhibits as they want it to be interactive and child friendly.
Unfortunately because of our first experience we probably won't go back. Hopefully their staff now understands how the museum is supposed to work and isn't rude to any other patrons.
I do think that had we had a better experience with the one staff member, our children would have had a lot of fun. The man that greeted us at the door was great! The exhibits were interactive. It's clean. They obviously put in a lot of time and energy into the quality of their exhibits.