Having been a SD! fan boy for many years, I was reluctant to give CCC a trial. But in light my recent issues and that my wife is suffering assorted ills when cloning to her SSD, I put ego & pride aside (not easily done by moi) and am now testing CCC.
Much to my welcome surprise, initial CCC tests indicate that the slowness problems I had with SD! seem to be at an end. And of course, having a recovery disk on each volume is a plus. Now, 'tis merely the test of time and learning new scheduling protocols, etc.
Thanks to all who hung in there with me, and (gently) counseling me re CCC.