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 analyses reviews to verify trustworthiness.
When I saw the ad for a one-pot pasta cookbook, I said Oh Yeah! We love pasta and I love one-pot cooking. However, we have now tried an even half dozen recipes and haven't liked any of them. I'm glad I didn't pay full price for this cookbook as it would have been a waste of money. As I said, sadly disappointing!