My first reaction when I opened my sample package of Hewlett Packard paper was just how lightweight it was. The weight is 16 lb. I am not sure how that compares to my other copy paper, but it definitely feels lighter. I wasn't really sure I liked that until I tried tracing some things on it - that could come in handy. Also because of the fact that it is 20% lighter, more paper will fit into a copier tray - aha! Less refilling! Also easier to carry large amounts.
I would recommend this paper to someone who did a lot of typing or computer work. I like the fact that it is lightweight. I haven't tried it in our copier at school. I am curious as to how it will handle a two sided copy. You can find this product at Shoplet.