Similar story here. I did Montessori for kinder + primary school in NZ (christchurch) before moving to Aus for high school. I thoroughly enjoyed it and I think it gave me a tangible leg up over a lot of my peers. Perhaps not a huge one, and everyone is different, but I think the 3hr work cycle concept + freedom to learn at my own pace - translating into not hating or getting frustrated at school/learning + the physical equipment you use to learn mathematics concepts were the most beneficial.
