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 analyzes reviews to verify trustworthiness.
My company uses EOS and it single handedly changed our company for the better. Bosses started being really positive and everyone knew where we were all headed. It also weeded out the folks that didn’t really belong or care one bit about the company.