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.
I wasn't sure this paper was good for my printer but took a chance on it because of the huge rebate. So far I've had no problem with the paper jamming. If you want quality paper for your printer or copier at a great price I say buy this type.