Earlier quoted context omitted.
In my experience, AI for coding is having a rather stupid very junior dev at your beck and call but who can produce the results instantly. It's just often very mediocre and getting it fixed often takes longer than writing it on your own.
My experience is that it varies a lot by model, dev, and field — I've seen juniors (and indeed people with a decade of experience) keeping thousands of lines of unused code around for reference, or not understanding how optionals work, or leaving the FAQ full of placeholder values in English when the app is only on the German market, and so on. Good LLMs don't make those mistakes. But the worst LLMs? One of my person…
I think this illustrates the biggest failure mode when people start using LLMs: asking it to do too much in one step.
It’s a very useful tool, not magic.