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.
The size and crispness of the crackers are fine. The cracker is "OK". But the seasoning is lacking. They're slightly bland. I much prefer another brand (Fantastic) that I order whose crackers are more heavily seasoned.