To me the biggest power of Vim is modal editing which you can now get emulated to varying degrees of completeness in your favorite editor. Whether or not a command line editor is your bag, learning modal editing and Vim keystrokes can be a huge productivity improvement and applicable to a large number of different editing environments.
Hard disagree. Modal editing makes no sense in current year. It and vi were designed for terminals without Pg Up/Down keys.[0] Looks like no End either, although there's a Home.
Times have changed. It's so awful to get used to, and the alternative is just reaching for Home/End/Pg Up/Pg Down. Gimmie a break, fam. (What's ironic is that most people I know who love vim do use those keys, so they're paying the speed penalty of not having to reach for them for nothing -- plus the million penalties of using a terminal editor, and a byzantine one at that.)
Also, ever wonder why the movement keys are HJKL and not the home row's JKL;, which would be far better and more intuitive? Glance back at that picture; for no good reason, the manufacturer of those terminals decided to put arrows on HJKL. And so, in inertial carryover of dumb design, vi's creator decided those should be the movement keys.
Sorry, time to eject from this fossilized ride from the '70s and into the 21st century.