First of all, thanks for this great component!
I'd like to mention a small bug though, namely the following:
When you use a discount code, the end total leaves out the shipping costs. So what happens is that on the checkout page, the price / prices of the product / products is mentioned, then the discount code, then the shipping costs, but the endtotal leaves the shipping costs out.
If you het 'next' anyway, the correct endtotal IS mentioned on the final page (when using bank transfer as payment option) but on the checkout screen itself the shipping costs are left out of the endtotal.
If a solution or patch is available, I'd love to hear it. It's probably easy to fix, but I don't know how to.