From Excellent to Near-Nightmare: Time to Move On
After weird occurrences with Dropbox (one morning 1/3 of my business and personal data were erased, gone forever) I had it and switched to sync.com - Canada-based, similar privacy protection as the EU, zero knowledge etc.
The Mac client switch to v2xx was mostly a downgrade: no more easy indicator if the app was indexing or syncing, no more "remaining files/time" indicator etc.
Then came client DT versions with unpublished issues with some legacy OS versions, which took a week and a CS escalation to resolve them.
Now I get a flood of File Conflicts which (with an identical workflow) I never experienced before, "Details to Resolve" messages with helpful hints written for Windows, and "Unauthorised Device" errors coming out of nowhere and for no reason at all.
As a paying subscriber for 10 years or so, I've had it with Sync. Not quite sure yet where to, but time to move on for sure.