In the past 3 days, I have spent $135, acquired 479 subscribers (people who gave me their email to receive my coupon) and have had 278 people redeem their coupons to purchase my product at a discount. Thanks to John, I am paying a ridiculous $0.28 per subscriber (lead) or $0.46 per coupon redeemed! Compare this with the $5+ it cost me to have one person redeem their coupon when I didn't use John's plugins!
Matthew