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.
Very disappointed with the backing of this product. It cracked and fell apart into tiny rubber pieces and made a mess in my washing machine and dryer after about 2 months of use. Washed/dried as directed...not even that often!