Ranked in these QuestionsQuestion Ranking
Pro Multi-platform (Linux, Windows, MacOS X)
you can use same tool in all desktop OS enviroments
Pro powerful tcmd-like search tool (alt+F7)
Pro Directory Hotlist
Save shortcuts to folders. Organize them in a treeview with submenus. Define a name and sorting for each entry.
Lots of options allow you to configure DC the way it suits you best: Tools, Fonts, Colors, Hotkeys, Mouse, Fileviews, Plugins, Layout, Toolbars, Tabs, Icons etc.
Pro tcmd-like multi-rename tool (CTRL+M)
Pro DC uses TCmd plugin API
so you can use documentation from Total Commander for writing plugins. WCX (packer), WDX (content), WFX (file system), WLX (lister)
Pro Source Code written in (Object) PASCAL
It's all a matter of perspective. I'm not for an argument about IDE's, frameworks etc, but to me that's a big plus. I think it should be a tie, it's either a pro or a con or should that be neither a pro nor a con. It just depends on context.
Pro It's that good, you can replace tcmd on windows too
Con Can't edit files on remote FTP servers
Con Source code written in Pascal language
But this does not affect users negatively. It's just programmers problem