Look and feel good, but function of the instant backup via keystroke does not really work

I needed a new external hard drive and 2TB with this appealed to me, because that has a button on the housing, with which one can start an emergency backup if you have installed the included software.

Unfortunately, this is not working well, because you can only back up the entire hard disk and no incremental image, for example.

If error messages (virtually at every backup) can not look up what was not secured exactly as you. All in all not so convincing. The built-in backup feature in Windows 8 is much (!) Better and more extensive.