Well Doc.... this one 'feature' puts me off straight away:
Unlike many other file managers, Directory Opus defaults to an Explorer-compatible user interface
One of the reason I've used TC for so long (10+ years) is the dual/split pane interface + I dislike Explorers general look/feel/use.
I've also grown accustom to using TC's hotkey setup etc etc.
So I generally tend to compare every new filemanager I come upon with TC, and none have so far been any way close to as easy to use.
But I'm sure that DO would appeal to anyone new, looking for a replacement for Explorer 