I've gotten a $50 amazon.com gift certificate from them, and a $25 Victoria's secret gift certificate. It definately requires much patience and an email or two to harass them once your 12 weeks is up, but it (at least historically) does come. I usually just do their sites of the day and their trivia for fun, slowly amassing points. I definately never count on them to come in on any timely scale. That occasional large gift cert (I'm waiting for a $100 gc currently) make it worth my time. Your mileage may vary.