Please note that this is BETA software. This means that it is still under development. This program works fine on my setup (DX2-66, Jumbo 250, Floppy controller, 32Mb RAM, 3 IDE hard drives (120mb, 120mb, 540mb), Suprafax modem, Mitsumi Quad Speed IDE CD-ROM, serial mouse).
However, there are hundreds (if not thousands) of different configurations out there. I cannot test them all (which why this software is beta). Before using this program for 'production' backups, PLEASE ensure that both the backup and restore programs work correctly on YOUR system. Until you have confirmed this (several times, I suggest), then only should you use this as your only means of backup. Until then, please also backup using a method you KNOW works for you.
Having said this, from the comments I have received so far, it does seem to work on a fair few systems so I hope it does work on yours. If it doesn't, I'd like to know.