SuperModels

Excellent App. Handles thousands of products for me from Shopify to Ebay, with very little issue. All orders from my Ebay store are handled through Shopify, so I can see and manage all orders in one place.

After a little bit of tinkering at first, I managed to get my sales data very smoothly into quickbooks. You can only sync back one month, but Ben from customer support very quickly managed to go back further for me without me needing to do anything my end. Really easy once you get going.