To calculate the overall star rating and percentage breakdown by star, we do not 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.
although doubts are expressed about quality and benefits of just any bottled water , i continue to use EVION just because i can afford to do it. I don't have any evidence of its good or bad effect after using it for >6 months.