Perhaps there needs to be a good definition of the expected features for coming out of beta otherwise it never will since it is a moving target.
Key things to me would be:
- no backup data corruption, including application crashes during backup (though in-progress backup might be invalid/lost?)
- listen for a system shutdown and stop the backup cleanly (Windows Updates might reboot the machine at night)
- correct handling of all symlinks
- correct handling of long paths (windows)
- complete language translations
- use of subfolders for backup destination (to me this seems pretty important and for some others since large backups are would otherwise be limited)
- ??
Would some user polls be useful to help narrow features/fixes to get out of beta?