Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
My favorite waters although if purchasing from Whole Foods you may want to take a sip out of the ones you purchase as I've received strawberry rose that tasted like chemicals and cucumber mint that tasted like plain water.