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.
Bought TWO, taking a shot in the dark, everybody has mixed reviews, but I am going to tell you from the bottom of my heart, that they're good, they run smooth, and well worth the money and well worth the smiles and laughter, have a good day and make this purchase your kids will love it!!!