> JetBrains IDEs are development environments, meant for editing code, in specific primary language.

I've used RubyMine and IntelliJ. IntelliJ kept me sane for the thankfully-short time I worked with Java, and I appreciate it. But I can't get past how SLOW RubyMine is. Even on my $4,000 MBP, it just feels sluggish. Maybe that's because I'm at home on Rails, and I can think faster than the IDE, but there's really not much excuse to my mind for being that slow, especially on top-end hardware. It once helped me debug a plugin of plugin of a gem, and I'll be forever grateful for that, but I keep trying it every so often, and failing to part with my cash for it. I pay a lot for software, in general, but that one's just too steep for my taste, when tools like vim, Sublime, and VS Code exist.