Your Drink Box
Gave this a try and caused me half a day of work to correct a number of problems.
Whist the sync was easy to process the orders ported shipping costs with vat which were zero rated. Zero rated products were showing with Vat applied. Non of the shopify fees were removed from invoices so to consolidate invoices with payments was not easy to manage. Think some more work needs to go into this otherwise I would have been a paying customer right away.
We're sorry to hear you're not satisfied with the experience. I noticed you haven't get in touch with our team. Our technical support is always available to help you with any of your issues. You can find us at the chatbox right at the bottom of the app screen or at firstname.lastname@example.org :) We would love to have you as a customer <3