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 have been in electronics for 50 years, and I am only sorry I didn’t have one of these earlier in my career ! I was very surprised by the light weight, the body is made of glass fibre. Pay a bit extra, get quality.