Using this cardstock to make my own business card sized information cards to hand out. I like its thickness and stiffness. Works well. Only con is it's a bit too smooth for my printer's pickup pad; I have to hold a bit of pressure on the far end of the cardstock pressing it towards the printer for the printer to pick it up. But that could be my fault; I haven't had my printer serviced in years.
Staples wants me to "rate" its white cardstock. Well it's white the pieces are all of uniform 8.5 x 11 size and it's stiff yet suitably flexible for printing. It is suitable for the typical purposes for which cardstock is used and meets the implied warranties of merchanability and fitness for use. An absolute "must" for cardstock aficionados.
The quality of the product is excellent and I will enjoy making and sending cards with it. The only improvement I would have liked was to be able to have gotten it in a scored form. Since Staples knows that the majority of the people buying card stock are making half fold cards I think it should be available at the store at a reasonable price. Even if you were doing quarter folds having a half fold would be helpful. Would love bright Red envelops added to their bright half fold envelopes too.