Years ago, about 5-6, I was using something called Norton GoBack which provided CTM and RollBack RX-like functionality. With the advent of Vista it was no longer compatible, and RB RX had bugs of its own. I've since replaced it with Norton Ghost, relying on weekly backups should anything go very wrong. However, I miss the functionality of GoBack since Ghost doesn't even come close to its flexibility.
I have been keeping an eye on the CTM software and I am really interested in using it. However, I am aware of the depth of issues it could cause in case it bugs out, and reports of entire drives' data lost and especially problems with Win7 x64 are keeping me from trying it out.
PLEASE continue to develop this program, to test it on multiple, diverse platforms, and to mature it to the point where it becomes a truly solid, trustworthy piece of software. I've been yearning for this functionality for a long time now!
I have very serious doubts that Win8's new SR functionality can even compare to a complete file-level restore which is indeed, as the name suggests, literally taking the computer back in time.