Is Apple's sync reliable though? There was an episode of MacBreak Weekly last week where both Adam Engst & Andy Ihnatko urged people not to enable the new Sierra sync system, and talked about instances of data loss caused by Apple's various sync features. The segment begins here:
https://www.youtube.com/watch?v=IgE1c-YTEpE&t=65m02s
I thought it was common knowledge that Apple's own sync (nevermind the APIs they provide to third parties) was terribly unreliable. Even long-time Mac developers like Panic & Omni developed their own sync services because the Apple ones were so unreliable.