Do you like a plugin that just works?
Something you can count on working after an upgrade?
Don't go here.
I can't stand supporting sites that use this plugin.
An upgrade or fix requires hours in the forums. I can't trust this plugin to do what it's meant to do.
I'd love to use it if it didn't make my life a living hell!
If you do go here, make sure your on a development site.
Try upgrading, see what breaks, see how it works BEFORE going live.
Try a simpler solution, or perhaps PP buttons, or Presta Shop.
Or other WP plugins?
My 2 cents