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.
It can only be tilted back & forth, no other motion is possible, and the angle is not great. However the magnet is strong, which is no surprise as it’s an Amazon product. There’s cheaper options available which can do a bit more like rotating etc.