I bought iDrive to serve as cloud backup, not for its sync capabilities. The one absolutely "gotta have" feature of backup software is the ability to restore an image of the backed-up disk at a particular point in time. Amazingly, iDrive cannot do this. If you attempt to restore your files you will restore duplicates, moved, and deleted files. I checked with their Tech Support and was advised to use the "Archive Cleanup" option, which partially addresses this problem. But when I look at the files to be restored I still find deleted and moved files because it turns out "Archive Cleanup" has date and percentage thresholds that screw up a true cleanup. Buyer be advised.