This article is missing one important thing: CoffeeScript now supports native import and export statements, but decaffeinate doesn't. I recently migrated several large codebases and had to escape all the import and export statements (which wasn't very hard), but it got a little hairy where we were directly exporting instead of assigning it to a variable first.

I'm going to miss CoffeeScript, but being able to use ES7 features (notably async/await) is worth it.