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.
These were easy to slide into the shelves of my portable closet, but were awfully flimsy. My cats have already broken several while traipsing around. They're meant to be flexible in construction, but this is what makes them weak and vulnerable.