I can save how much?

I saw a commercial today for the grocery coupon website couponsuzy.com.  You can print out coupons and save big money, at least that's what they promise.  But their promise sound odd to me.  Coupon Suzy herself guarantees that you can "save as much as $40 or more every week".  So which is it, can I save as much as $40 or more than $40 every week?  Which is it Coupon Suzy?  If I'm not guaranteed to make one penny over $40 I'm taking my business elsewhere.