Pros: Small, clean, fast, portable. ANY way you need to backup, synch, copy, mirror files from one drive or folder to another; this is the BEST program for it! Command line allows you to configure it, schedule it,and put it in a batch file. It has a "quiet mode", or user prompted, and will give a report if you want one. Simple and powerful!
Cons: As of 02/05/2013 - It would not overwrite read only files on target destination without user input. - The Author has already said he'll have that limitation fixed in a week or so!
Other Thoughts: The Author, Mr. Zorc, has another utility that he may publish: It's a TINY, stand alone, command line only program for professional users that can do what everything Zback does! He was kind enough to let me look at it and it's GREAT! Look for Bacar soon!
Thank you VERY MUCH Davor Zorc, for these excellent free programs!