Emacs is a tool with an enormous set of available functionality that has been continuously developed for 35 years. Moreover, its major strength is its programmable and nearly infinitely-extensible nature.

And yet, it does "just work", from the moment you first run it -no previous experience needed- it does present you with a familiar "editor skin". It does offer you an interactive tutorial. It does come with comprehensive offline documentation. It does come with the best interactive querying and documentation capabilities of any software system in wide-use today.

So, taking all of that into account, when you say "just works", I read "I don't want to spend any time whatsoever to learn 35 years of features and a software system that is by far the most user-empowering in existence today". Your loss.