firstly, when turning on backups, they don't back up to the same folder that the onedrive sync is so my users now have to look in 2 different places. Also, there is not a clear cut way to restore backed up files to a new computer. In fact, on the new computer if you sign into onedrive and go to the backups tab, it doesn't see that there are backups from another computer and only prompts you to begin new backups which I haven't yet tested to see if doing that overwrites your previous backups which would be completely absurd.