I like the way URBackup is architected to allow road warriors to be able to backup quickly while on the road. Not every other backup system out there works that way. I like the fact that it's open source code also, however that is mitigated by its finickyness in that, if you start modifying source code and recompiling, it goes off the rails quickly.

UrBack is an excellent way for data safety for both client/server systems.

I love this software because it is so easy to use. We use server imaging through one process, file backups through another process (scripts & cloud storage), and UrBackup for client computer image backups that can be restored within an hour or two. Of all my backup strategies, this one has been the most saving as I can usually just pop in another drive on the downed computer, boot off a cd or DVD connect to the server, then restore the computer from the last nightly backup - and it's free! There are also a lot of options for this application that is constantly being updated and added to by the developer, and it has lots of storage varieties that can be implemented. I have tried a few different ways of installing this application (OS's), but for us, the Windows servers seem to fit our needs best. Also, we are able to maintain Full & Incremental image backups on our schedule where it doesn't really interfere with our day-to-day work.