I used to be really addicted to hardcore code completition and refactorings for Java in IntelliJ, it just felt like there is no other way. I had the same feeling when I was considering Sublime while using VIM, I thought there's no other way to edit text than the way VIM does it. And both time it paid off that I gave another editor a try :)
I tried it. It is good. It supports lists, with checkboxes, and completion ([1/3]). It supports some links.
It does not support tables. You can not reorder entries. It does not support code blocks. You can fold, but you can not narrow (i.e. all headlines stay there, but content is folded away). Your favorite keyboard shortcuts are not there (though you can change that easily).
As much as I like Sublime Text, I am more productive in Emacs.