I recently ordered MBP and it arrived quickly to our home in Australia.
This is the most comprehensive and vigorously prepared curriculum we have encountered in our 15 years homeschooling. It goes beyond the goals of the Australian Curriculum.
In my experience with six children, a very effective way of engaging learners is to have them research by using reference materials to find the information, rather than hand it to them in a text. My children are stimulated by this method, and really 'own' their findings, and love to share them. They tend to go beyond expectations and keep researching, very much extending themselves. Once 'switched on' to seeking and finding information, they become life-long learners who delight in delving deeper in many areas they would never have explored. This is an excellent curriculum, thank you to all who have contributed to its making.