I was a happy paying Dropbox customer since 2008 but downgraded my account to the free tier a few months ago. I no longer consider Dropbox trustworthy for anything except (1) trivial files and (2) files encrypted client-side before they're put into Dropbox.
Even with the above, I had two specific use-cases that only recently did I resolve:
- 1Password Sync. Dropbox is no longer necessary here since 1Password natively supports iCloud sync across Mac and iOS.
- Arbitrary file-sharing between Mac and iOS. Dropbox is no longer necessary here ever since I've been running BTSync, which has worked flawlessly in my experience.
It might be time to cancel Dropbox entirely.