I wanted to love the idea of a complete kit with supplies and living books, but maybe that works better for level 1. Most of the supplies are laughable. I asked to return it but got no reply. The things that should have been included are not . .. For example how are CDs considered "household items" (especially when you know they're getting scratched up). On the other hand, straws and rubber bands , those could have been left out.
Most importantly, having to to find the main information from various pages in various books like Encyclopedia or Exploratorium is exhausting and annoying. The order of topics doesn't make sense to me either, why is centripetal force at the beginning of a lesson on energy? An organized textbook would have been simpler.