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 like using it on my mandolins instead of snap locks. Keeps the straps on and I don't want them to fall off and get broken. I use snap locks on most of my guitars because once on they are staying on for sure.