Waiting on a Sigma 20mm ART to ship. I've been bummed that I missed the $799 sale that B&H, Adorama and Amazon had on the ART lenses a few weeks ago. Then was reminded of Greentoe via this thread last night. Put in an order after midnight, was notified that my offer had been accepted by 10am today. Little snag on my end because my CC company didn't accept the order right away because of fraud protection. Issue was instantly communicated to me via Greentoe, and everything was resolved and I got my shipping notification from the retailer in an hour. Very pleased so far, and assuming the rest of the transaction goes smoothly, I will 100% use the service again.


