Is there an actual demo of this plugin?

Hello,
Is there an actual interactive demo of this plugin which I can test out before purchasing? The demo page linked on the product page is just a description of the plugin, not an actual demo. I can't tell if the link is broken, or if the title "Demo" is just a bad translation. Usually with plugins, a demo is a test environment where users can try out features and get a feel for the user interface.

I'm uncomfortable purchasing this plugin without trying it first, given the refund policy seems strict. I've purchased premium wordpress plugins and themes in the past and gotten stuck with something flashy with an over-complicated, non-intuitive user interface. I wan't to make sure this plugin is right for me before purchasing.

Thanks for your help!