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 ordered this because I thought my old axle had broken, but upon taking apart my DS I found that the case had worn away around the axle, and my old axle was fine. As a result I haven't installed or tested this product, so I can't really comment on its usefulness.