What sucks in SyncToy?
http://www.syncbreeze.com/syncbreeze_real-time_synchronization.html would be better?
I back up my files with my external harddrive. I'm using SyncToy to sync my external hdd with my, but it sucks. I'm looking for a program which can automatically update/edit/copy/delete/move files on my external hdd and make changes whenever there is changes in my PC hdd.