Yes, I retired Evernote when I discovered Vimwiki. I keep wondering, though, am I shortchanging myself by not using org. mode? But I don't know emacs and I am not sure whether it makes sense to make such a costly transition.
Depends. For just checklists org-mode is overkill, I use a few custom shortcuts
in Vim for that.
But org-mode also has a couple additional features like time tracking and a way
to generate summarised tables based on that tracking, or the agenda. Either way
learning Emacs just for org-mode is probably only a good idea if you really want
to use the features coming with it in one package.
There is a danger in making things too complicated. You reduce the number of systems you can access it on, and you increase the complexity of just doing basic stuff.
Humanity made a huge number of advancements using just simple paper and ink.
I used vimwiki. Switched over to Org a couple years ago and I really like the change. If you use Spacemacs and Evil mode you should feel pretty at home.
Easiest way to get started with org is to start simple. Just use the indented headings and source (code) blocks. Once comfy there you can branch out into tables and todos. Then maybe use the agenda (I personally don’t).
I’ve never had to write elisp or anything other than normal vim commands.
Are you missing anything? Probably not. Depends on how in depth you want to get. But, I’ve done the transition and thought it was positive. :)
I tried vimwiki and it's really cool. However I couldn't get to "one step up" because it was so vim-specific and I didn't have access to that on every system I used. As a compromise I decided to lean into editor snippets for personal productivity and automation, since these are available in just about every major editor. The rest of my tools are externalized and called as such from the editor, like pandoc and various little apps and system scripts.
But it really doesn’t matter what you use, the real benefit comes from having a process/habit of continuous review.