I have been using it for twenty years or more. It is great for cleaning up masses of almost ok, but dirty data for DB work. It handles BIG files with very long lines.
The best editor for the programming of the Earth. With KeditWin (preferably v1.5) you can write macros (in Rexx) that allow you to do whatever goes through your mind. It has no limit except your imagination and just enough ability to program in REXX (easy). 100 votes out of 100.
Sadly, it's out of support.