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.
For a brand that makes quality items, this is a real piece of junk. The board wouldn’t open and close properly and it shakes all over the place. An Ikea ironing board is way more stable and much cheaper too. Don’t waste your time with this.