I just received the C6 from clickfree from QVC this week and i think its bloody brilliant. I used it on my samsung nc10 (that has whitescreened on me) and was able to recover all of my files from there, something i'd been panicking about, then i plugged it into my new samsung ns310 however it wasn't click free on that, it went through installation files, downloading drivers etc and took about 5 mins before it started anything like a back up, however now its done, I assume it'll be very easy to use in future.
I'm thrilled with mine, its 500GB so now i'm wondering if I should have gotten a larger sized one.