When comparing TotalFinder vs Notational Velocity, the Slant community recommends Notational Velocity for most people. In the question“What are the best power user tools for macOS?” Notational Velocity is ranked 14th while TotalFinder is ranked 16th.
Ranked in these QuestionsQuestion Ranking
Pro Copy path to file or directory feature
You can copy the path to a directory or file using the context menu in Finder, options include POSIX Path, URL, Windows Path, UNC Path, HFS Path, and Terminal Path.
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/paste context menu functionality to Finder
You can cut and paste with just the mouse.
Pro Syncs with SimpleNotes or Dropbox
Pro Simple and minimalistic
The interface is clean and unobtrusive.
Con Requires special installation procedure in El Capitan and later due to "System Integrity Protection"
"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 (TotalFinder injects code into Finder).
For TotalFinder to work properly one must disable SIP temporarly to install. After installation a user can turn SIP back on without issue.
Instructions are detailed here.
Con Feels a bit outdated
The last release was from 2011. Although due to its brilliant simplicity in doing what it's designed for, some might think there hasn't been any need for an update, as long as it still works with the newer OSs.