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 found the writing a little on the full side but my eleven year old son thought it was pretty good. He didn't ask for more of the series though. This might work for much younger children. I found the characters quite flat.