Hopefully I helped clear up a bit of mystery around the tracing options in Illustrator CS6. Tracing in software may never be perfect, and require us to make corrections after the fact, but CS6 tracing has been greatly improved. With a little image clean-up and some patience, you can usually get the tracing results you need or at least get you close. If not, there’s always the option of brushing off the Pen tool and starting over.
To learn more about working with the Image Trace in Illustrator CS6, visit the Illustrator Help website and search for “Image Trace.” Unfortunately, when writing this article, I searched on that topic in Illustrator Help and found that the Adobe Help still referenced the Live Trace functionality from CS5 and earlier.