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.
I found the instructions provided to install this lock clear and easy to follow. The lock works well and looks like the images. I gave it 4 stars as I think the buttons are a bit soft to press, it is good that they have an acoustic confirmation.