I hate their rebate stuff. You can't get a check so you get stuck with these dumb visa cards. However the price after rebates is usually the best in town. Paper is good and I have never had any problems with it. I buy large amounts for a non profit organization.
The five ream package of copy/everyday use paper is convenient for me because it combines a significant amount of paper in a package that is easy to pick up and carry. The regular 10 ream case is too heavy subjecting most people to the possibility of straining their back. Also unless you need for the box the ten ream's packaging is a disposal problem.