I previously used CTO to link my Magento store to Xero and it worked seamlessly. We then decided to move to Woocommerce and at the time there was no CTO integration available for Woocommerce. I tried several other Apps none of which worked well. I was delighted when CTO contacted me to say they had developed a Woocommerce version. I cannot thanks them enough, the app is brilliant and the support is second to none. Easily one of the best Woocommerce-Xero integrations, it just works!