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 purchased these sneakers for my granddaughter for Christmas. The first time both sneakers didn’t light up. I returned them and got a new pair. She wore them once and one of the sneakers doesn’t light up. Very frustrated