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.
So far its been really helpful with not bruising my but like crazy. A warning tho, it is still possible to get pretty bruised if you fall on the gaps between the paddings. Learned this the hard way. But still over all glad i have it.