I have used this plugin for my small scale business to sell EBOOKS through online. Though this plugin is having only PAYPAL, CASH, BANK which are supported by eSHOP team & other payment gateway's which are not supported any more, I have just used this plugin in my ELEGANT BOUTIQUE theme which is very awesome to run everything smoothly.
Recently, I have created an Addon for this plugin with a new merchant gateway. And that plugin is also working perfectly along with all other merchant gateways. Really awesome plugin.