Having little experience with other editors (save vim -- it's everywhere and it's useful), I couldn't say (nor am I trying to change anyone's mind). It's non-trivial to use productively and in my opinion takes a good month to get to know. There's a reason user friendliness has been a hot topic of late.
With that out of the way, I think there are some damn nice features. Tramp allows for remote work over more or less seamlessly over ssh (among other methods[1]). Magit is a git front-end that works well, including over tramp. VTerm has largely replaced tmux in my workflow. Although I'm not a heavy user, org-mode has exploded, even among non-developer types. (A lot of EmacsConf 2020 discussed various org-mode use cases.) Add to that unlimited customizability, keyboard macros, and extensibility (in emacs-lisp, which is either a pro or con, depending on how you feel about programming in a lisp dialect).
In truth, even though I'm fairly conversant with hacking out functions in elisp, there's less and less need to do that as time goes on. With a package manager and ~5000 available packages, lots of work has already been done. I see that as a positive.
Important to note is that although development continues apace, there have been few breaking changes. Once you get used to it, you can pretty much rely on it. Perhaps all of this is true of other editors as well; I'd hope so.
Again, I'm not trying to proselytize. It's been a boon to my productivity for decades and I've never regretted the time spent learning and customizing it. YMMV.
[1] http://www.gnu.org/software/em...