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.
This would be awesome, EXCEPT it comes in many pieces and they do not stay together. The screw at the bottom does not screw in to hold the 2 base pieces together. Little metal balls for making it spin went flying everywhere. No instructions. Very disappointed.