We switched to Staples brand multi purpose paper years ago and have not been disappointed! We feel that it is every bit as good as the more expensive name brand paper products. The color is the "right" color white - not too bright not too dull. The thickness is the "right" thickness - doesn't get stuck in the copy machine doesn't take too many pieces when faxing. Occasionally the first couple of papers are wrinkled when opening a new ream but that is a typical problem and can happen with any brand (I believe). Have been completely satisfied with our switch to Staples brand paper!
I don't know how Staples does it but week after week I end up getting a ream of their printer paper for just a penny plus taxes (after rebate). What better way to sock up? And the paper is very good quality.