Although I licensed, installed, and used SPF/PC many years ago, I don't think you could drag me, kicking and screaming, back to it now. Nevertheless, there were features, such as column mode, that I found either missing or wanting in most of the text editors that run in Microsoft Windows. That is, until I started using UltraEdit in September 2009. Pretty soon, I quit searching for a better editor, and purchased a lifetime of upgrades for UltraEdit and UltraCompare.
After a few years, I gave up on SPF/PC. Not only is it shoehorned into a PC, but it always felt sluggish, no matter how much CPU horsepower I threw at it. Whenever I used it for a task that seemed best suited for SPF/PC, I felt like I had regressed to a monochrome 3270 terminal (not even the 3278 color terminal).
Any time you change programs or programming tools, there is a learning curve, and I won't mislead you by saying that you will make the transition overnight. Nevertheless, I think you'll be happy that you did, once you get accustomed to UltraEdit. I cannot think of a single feature of SPF/PC that it can't match or exceed, and it brings many powerful features, some available in few, if any, other editors. One that I use more and more frequently is find and replace driven by Perl regular expressions. With UltraEdit, I can do things that once required writing and running a Perl script. With UltraEdit, I do them interactively, using only the built-in feature set.