I'm glad I'm not the only one who has had awful luck with that IntelliJ Elixir plug-in. Maybe I'm doing something wrong, but it just doesn't work for me.

I've been using emacs + elixir-mode + alchemist since Elixir came out and I have zero complaints, it all works beautifully complete with autocomplete, jump to definition and documentation popups. But obviously emacs isn't for everyone.