This supposedly 'white' card stock has little colour flecks speckled all over it. Fortunately for me my current needs do not require that the card stock be purely white so this is just a minor annoyance. I'm not thrilled that if another use for white card stock comes up I will have to buy another pack that is actually white. I'm not made of money. For me this is irksome but for someone who really needs white card stock that is WHITE (shocking) this will be a serious issue.
This paper is noticeably thinner than the last of my other 20# paper. Now I have 10 reams to go through before buying a better product. You get what you pay for even if it's advertised as what you think you're getting!
I prefer this paper over the duller paper that other brands have. It's nice and crisp looking and doesn't get stuck in the printers. Highly recommended.