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 to secure expensive jewellery and important documents, car keys etc. Wanted an insurance approved one just because it offers better attack resistance. Bolted into brick work as this is most secure method. Bonus you could pay monthly.