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.
Some very valid and interesting points but should be targeted more at the 2 plus market as a mum of 19 month old who can’t yet talk or understand a lot of the advice is talking to them which is lost at the moment in our household! I’ll try again in a few months or year!