marketpress VS woocommerce

Hello world,

Would like to learn more about the Marketpress plugin and wondering why is there NO demo available ? *at least see a few websites using it...

I can read the following : "MarketPress eCommerce is the most comprehensive WordPress eCommerce plugin available" while checking the MarketPress page :
https://premium.wpmudev.org/project/e-commerce/

So I googled a comparative and found this page :
http://wpscoop.com/comparisons/wordpress-ecommerce-plugins-comparison/woocommerce-vs-marketpress-comparison/

... where it says that only 19 of the 50 are available ... Is that true ?

Thanks, later