Recycling is an extremely important (and overlooked) aspect of business. 100% recycled paper may be a small step but it is a step in the right direction.
It only makes sense if you care about the "Recycled" label. You can buy 22lb 98 brightness Staples paper for the same price which is both heavier (sturdier) and whiter.
I print a lot - I like to work with paper - and I feel guilty about that because I also care about the planet. I am careful to recycle everything I can to use compact flourescent bulbs to wash in cold water etc. but I am a paper hog. So finding copy/printer paper that is made from 100% recycled material made me VERY happy because it helps me to lessen the harm I am doing. The paper itself is absolutely as good as other basic copy/printer paper for everyday use. I was a little worried that I would notice the lower brightness of the paper but it has made no difference whatsoever.