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 quality of this interfacing is excellent. Surpassed my expectations. Being a retired Quality Control Manager, I couldn't resist in putting it through some tests that pushed the limits of proper application; max temp on iron, ironing directly on interfacing, e.g.. Not recommending abusing proper application, but this interfacing is excellent. It preformed better than some top brands I've used in the past.