Complicated plugin but good support
I found the plugin setup quite complicated, knowing which fields and extra fields to add to the feeds. Then had lots of issues trying to sync the data from Woo to QBO. The support team were great, though: they investigated my site, discovered the issue and cleaned up my feeds. My advice: DON'T use colons in your product names (or certain other characters probably too), as QuickBooks doesn't recognise them and all hell breaks loose! I had to purge all the company data twice and start again. Thanks to support for resolving this for me.