Xero & QuickBooks Smart Sync

We desperately wanted this app to work for us. Support team would disappear for weeks or months at a time and was never able to fully sync transactions through without errors resulting in a significant amount of time manually reviewing, editing or deleting transactions. Developer has since billed us nearly $1000 and we have had to stop integration and delete all invoices as a result of ongoing syncing issues Requests for refunds or resolving issues were ignored despite repeated efforts. Sadly cannot recommend.