Responding back to my post -
My son has started on it, and the "Gizmos" are amazing. I signed up for the 30 day free trial to check it out for my self. I was very impressed, but it is not sufficient in our case as a stand alone product. I think that it is absolutely fantastic for classrooms or for home schoolers to use as part of the teaching of the curriculum,and I believe that is what it is meant for. In our case my son has been given them and been told to do one after another with no other instruction.
The "Gizmos" are fantastic for visual learners like my one son because they can fly right through them and learn a lot quickly. They are also great for non-visual learners like myself, because it teaches you how to visualize concepts that you normally have difficulty visualizing.
