I used it at the time. It was very ambitious, supporting a scripting language for what are now called smart contracts, and very complex payment schemes. It wa

I used it at the time. It was very ambitious, supporting a scripting language for what are now called smart contracts, and very complex payment schemes. It was also a huge pain in the ass to integrate, and the user payment flow was wonky, with a redirect to multiple amazon branded pages to log in to amazon, then redirect back to finish the transaction. I've not used stripe, but people who have tell me it is super easy to integrate.