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.
Very comfortable and durable. Wearing it for more than 10 hours a day and still good.
But the sharp stitches was digging into the back of my heel and causing blisters. Used a hammer to flatten them (like how the cobblers do it). I think you can expect that in a new shoe anyways. So not so fussy about it.