I have one. battery seems to go fast but I like to see what I have saved
not just trust to the fact that the lights have gone out !  Bit slow but
does the job and saves me buyomh loads and loads of flash crads.  Also
allows me to write to Large JPG and RAW on my 350d without too much
guilt cos I can edit them later.  Hope been of use

Tim

I have one too and I use it a lot, not just for backing up CF cards either.
The transfer from CF cards is slow although that doesn't make a great deal
of difference to me. I also use it as a portable external hard-drive for
ferrying stuff to and from work. The large(ish) screen is also handy for
showing images; of course you can plug it into a composite video screen too,
and use the slideshow features and the remote control!

If you do get one, buy a spare battery too - they do tend to go flat
quickly!

The Lowepro case "D-Res 120" fits it perfectly with space for a spare
battery, the USB cable and a pair of earphones in the compartment on the
back.

Best regards,
Craig.

I'd go for an Epson P-2000, if it were me.