Many competitors speak about "Sync" to Quickbooks or Xero.

Sync is suppose to mean automation, yet it does very little to automate. 

Once data is Synced, it is NOT posted to a Ledger with a Debit and a Credit.

Therefore creating a big mess. 

What is the big mess you ask? Well business transactions must be posted to a ledger with a debit and credit to the correct account. Absolutely none of these sync claims make journal entries inside of Quickbooks. Leaving ALL THE work for your accountant to do.