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.
I plan to use this during a hospital stay, though I’ve been wearing it around the house. My only concern is the zipper is a little sticky. I have to be very careful when attaching the zipper or undoing it. Otherwise great product!