Same boat here, love the product and it matches perfectly with Endicia shipping rates so that is awesome. only short site I see is no a direct way to input a handling fee so only work around I have come up with is to pad the weight of my items, only issue is if they order 100 items then my shipping is going to be ultra excessive.
So a way to add a 1 time per order handling fee and mask it in a shipping would be really over the top!
