To calculate the overall star rating and percentage breakdown by star, we do not 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.
This mat is nice to stand/walk on, and does not slip (which makes it hard to adjust). It will take a few days for it to lay fully flat. It is on the thinner side, however, it wouldn't be washable if it were thicker.