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Pro Adds dual panes to the Mac finder
A great feature of TotalFinder is the ability to have dual panes. This is really handy for moving files around.
Pro Adds cut functionality to Finder
Con Doesn't work in El Capitan with "System Integrity Protection" enabled
"System Integrity Protection" (also know as "Rootless") is a feature introduced in El Capitan that, among other things, inhibits applications to inject code on system apps (since TotalFinder injects code into Finder, it doesn't work).
The only way for TotalFinder to work is to completely or partially disable SIP which makes your system less secure. Instructions to do this can be found here.
partially disable: http://totalfinder.binaryage.com/system-integrity-protection