Unreliable software backed up by unhelpful, passive-aggressive customer service.
I have used GoodSync on and off for several years. My final conclusion is:
GoodSync is garbage.
Just some of the errors I've encountered in my efforts to make this software work properly:
* Locks up while attempting to sync to a folder. Just becomes totally unresponsive. The process needs to be killed, and often the machine rebooted, to recover from the lockup.
* "Undefined Error: 0." Constantly. This is GoodSync's version of "An error occurred." Could be a million reasons. Don't bother emailing GoodSync customer support - they don't know and won't help you.
* Sync jobs just fail, spontaneously, mid-sync. The sync is running perfectly, the volumes are both still available... aaaaaaaand it abruptly stops.
* The network browser is overdesigned and overcomplicated. All you want do is to specify a URL, a username, and a password. Sometimes it accepts the settings. Sometimes it doesn't, it just uses the old settings, and then barfs out random error messages.
Don't bother. It's awful.