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.
This lippy survives coffee and most foods (not hot soup of course). It's great. Lasts all day without staining your lips. Easy to remove with a makeup wipe. I've bought 2 different colours already, and I'm an under-buyer.