IntelliJ (and the whole Jetbrains suite of IDEs), has one of the best VIM plugins I've seen in an editor. It's hard to say what it does differently to others, but I've rarely encountered a situation where it does something common in my workflow differently to (neo)vim. It's just pleasant to use and gets out of my way, and has a nice method of configuring whether a shortcut should be handled by the IDE or the VIM plugin when they might conflict.
I've found multiple features and motions that do not work the same as in (neo)vim and end up breaking my flow a bit.
However, I have to agree it is probably the best vim plugin I've seen anywhere, and is life saviour for me :)
