Comment by BobbyJo

I strongly disagree. You're packing a bunch of different metrics of quality into a single bullet and somehow suggesting those are separate than the second bullet point. Readability is just as dependent a metric as the others. If you make things that are hard to read, I can guarantee they are not going to be robust, as well as likely not performant.

In my experience, the easiest to maintain code is very often the most efficient and robust as well, because people haven't felt the need to hack around it at every corner.