After using CCC successfully for a couple years I switched to SuperSuper! for several reasons, like its data/metadata copying integrity, Smart Update capability, and responsive GUI while cloning. Support is friendly, humble, and excellent. While not "perfect" or as featureful as some other backup apps (but only at version 1.x), it's the current gold standard which all other OS X cloning utilities can be compared with, IMO. About the only thing I don't care for is the exclamation point appended to its name. :-) More seriously, there's room for improvement in the interface for writing Copy Scripts and maybe adding some built-in support for managing disk/sparse images. Those are two reasons I rate Ease Of Use and Features only four-stars, but Overall I consider this is a generously priced (don't pirate it!) five-star utility.