This is a massive win. I remember trying to setup payments and begin rejected several times by Worldpay and this was a process that took several months and required us to keep funds in escrow. Ultimately we settled on PayPal integration which required sending customers off to paypal.com and hoping they went through with it.
I'd love to see some case-studies in terms of conversion rates for completing transactions when it comes to keeping customers on site to do payments versus sending them to a 3rd party.