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.
The bag seems to be constructed as other fireproof bags I've seen, but the closure mechanism appears to be a plastic zipper alone ... no flap or other mechanism to protect the zipper. It seems the zipper is a weak spot in the performance of the bag. I don't intend to torch the zipper to find out for sure but will only use it in limited situations where fireproof is not a firm requirement.