I use this paper exclusively for Client Proposals. When put next to other proposals from my competition there is a huge difference. mine appears cleaner more professional and much brighter. The weight of the paper does make a difference as well a slight bit heavier barely perceptible but adding to the perception that this proposal is worth looking at. When an impression matters this paper does the job.
Best paper I've ever used ... will never stray from it. It's bright white is more professional looking and through my experiences of cheaper paper this one never jams up in our printer or fax machine.