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.
I was a bit hesitant on orint quality of the valuetoner ink cartridge at first but now I'm glad I purchased it. The print quality is great! I couldn't tell the difference from original when I compared them.