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.
Bought these for my "high end" son - he found them on Amazon. I find them boring, but they ARE well made and seem like they're going to have staying power. It just hurt me to pay that kind of money for coasters.