It enables unskilled people to punch above their weight class, similar to giving a chainsaw to a toddler.

I've used them a little for coding, but it's not always correct. It's often incorrect in subtle ways. Or inefficient in non obvious ways. It gets worse as you build more.

Often it's better overall to do it yourself if you know what you're doing. If you stick to letting the LLM do it, you won't learn much.