Recs.
Updated
Specs
Pros
Pro Can open folder as root
PCManFM can open different folders as root, this way you don't have to use the terminal to move around files for which you need root permission.
Pro More RAM is available for other processes, and the system uses less swap
Overall, the system becomes faster.
Cons
Con Right-click option choice limitation
You can only choose one option in the right-click menu instead of being able to select multiple at once.
Con Directory trees can be confusing
Starts you off in a directory tree that is your home folder as if that is the very top. (Just use a single tree as it actually is and expand appropriately).
Recommendations
Comments
Flagged Pros + Cons
Pro Can use tabs instead of new windows
Use tabs to open fewer windows. New tabs automatically start in the same location.
Con Does not include a file search option
Although you can easily search in the directory you are in by just typing in a file name, advanced searching is not possible by default.
Con It's an outdated, less customizable version of SpaceFM
SpaceFM evolved out of PCManFM, has more features, is also lightweight and desktop independent, and is far more customizable and feature rich.