I used this paper to make flyers for a school event. The flyers were going home in the folders of every elementary student at the end of the week... that means TONS of papers and lots of "competition" to be seen and remembered. Our event had a huge turnout and I attribute this to the fact our flyers were so visible.
We mail brochures printed in black ink. This paper does not get "lost" on our prospective customer's desk. We also use it to separate parts of documents ordered making it easy to locate the beginning and end of documents.
Since ORANGE is my school's color and this orange best shows it I use it for alumni mailings all the time. Since it is 24# I have it being the outside sheet and other 20# sheets folded inside. It goes through the postal system with ease.