I signed up in early February and used in 2x then. I haven't seen anything that I need in the March set of coupons. Both times, my cashiers didn't know how to use them, but they asked the cashier closest to them. Also, the instructions are under the coupon. I didn't get an attitude from either of them. They both seemed curious and determined to make it scan. I have a samsung and unless I hold it at a perfect angle, it's hard for them to scan. But, you can send the coupon to your email and print it off, too.