ShipStation

I have been a Shipstation user for more than 2 years. When I switched my websites (I have different sites for wholesale and retail) over to Shopify last fall, the transition was seamless - even for my slightly less than simple setup. All my orders move into Shipstation from Shopify with one click. No manual order entry, and I have the flexibility to use my own commercial shipping discounts. Even my Etsy and Faire orders move readily into Shipstation. Easy peasy, and super fast.