If one just chooses a reasonable documentclass and if need be a few packages suited to the requirements of one's document, then it all "just works" with (mostly) sensible defaults and minimal configuration.
Memoir hugely simplified my own work in LaTeX back when I was doing book composition.
Or, just use LyX....
> If one just chooses a reasonable documentclass and if need be a few packages suited to the requirements of one's document, then it all "just works" with (mostly) sensible defaults and minimal configuration.
Ironically, very similar to the story with modern C++. If you use a limited subset it can "just work" but only if you are disciplined and don't have to mix in legacy code that's pre-C++11.
Well, you'll have to install and keep those packages somewhere on your system. And maybe a few months from now after your latex distribution got updated by the system your document suddenly no longer compiles.
What I want is something like npm-like package management for this, where the packages are just kept there next to the document. I don't care if I'll have a package 20 times on my system either, storage hasn't been a concern in many years.