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 used this product one time and was okay with the results. I went to use it again a week later, and it wouldn't turn on at all. Reset and plugged it in to like 10 outlets. Everything else worked, but this wand was dead as a doornail.