CnWizards may broke non-Latin characters.
At least in XE2 sources with russian characters were broken, when exporting to RTF.
They were also broken in default HTML/UTF8 export.
And since i used some characters (Greek letters) beyond English+Russian, they were borken even with non-default HTML/windows-1251 export
Also CnWizards can not export DFM which are also part of the project.
External tools like SynEdit, SynPlus or YAPP are nice, but cannot convert all the project at once, cannot reuse IDE customized colouring, and potentially would lack behind most recent syntax changes in most recent Delphi releases.