Fantastic plugin! The bug (as we are discussing via email) is that the plugin passes item totals instead of the item price. Meaning if someone purchases 5 widgets for $10, instead of passing 5 widgets for $10 the plugin passes 5 widgets for $50 which throws off the insurance and customs calculations in Shippingeasy. Same issue with the weight. So basically the plugin should pass the per item price and per item weight to the Shippingeasy product line items. Everything else is perfect.