Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I have wanted one for years and not disappointed I finally chose this. I use it for making fresh tortillas from my own milled corn and the grandkids love it too. As well as real tortillas the kids love using it for play dough. Kept them quiet for a couple of hours!