So far I love everything about the plug-in and wanted to thank you guys.
I just noticed that with the new version of eshop that when an item is added to cart, both the eShop Cart widget and eShop Cart (Improved) widget will multiply the subtotal by 2x the actual amount. If you click show "Just totals" the amount is calculated properly. It's only on want to show "full cart" that the widget displays 2x the amount for "Sub-total"
This only happens on the widget (not on the main page). You can have a look here: http://www.epicstoke.com/shop (it's in test mode)
Not sure if anyone else is having this issue with the newest update, but it never happened before the update.