I use to really like this software for it's simplicity and reliability.
But since version 6 I've only had troubles.
I guess it's fine if you have a very simple backup setup.
But I'm backing over a network to different machines every time I check if everything is ok I found out that the backups were running for 2-3 days and then stopped for unknown reason.
I'm having this troubles on different machines and networks.

And now, what made me really give up on this software:
Yesterday my Mac OSX server ran out of space on the system drive! 0kb left on a 350Gb HDD!
I only have the system installed and a couple of extra applications.
After searching for a while, I found out that Synk has created a log file of more than 300Gb hidden in the invisible /var folder.

So I'm switching to Synchronize Pro today hoping to have a better user experience.

Thanks.