The coredraw trace tool is among the top best I've seen and used so far.
1- it would be super okay if the option of filling the gap was introduced so traced images could actually appear more consistent which may help raising the creators/artists interest on coredraw suite.
2- it's is still a nightmare for most of the tracing tool out there when is comes to trace gradient colors
Coredraw actually have and offer the right tool but some small improvement need to be made considering the actual global improvement happening in the creative software world