The experience was that I once asked an LLM to write a simple function and it produced something very wrong that nothing with good reasoning abilities should ever do. Of course, a drunk or very tired human could have done the same mistake, but they would have at least told me that they were impaired and unsure of their work.

I agree that most of the time it does most simple tasks mostly right, but that's not good enough to truly "offload" my mental effort. Again, I'm not saying it's not useful, but more than working with a junior developer it's like working with a junior developer who may or may not be drunk or tired and doesn't tell you.

But mostly my point is that LLMs seem to do logical reasoning worse than other things they do better, such as generating prose or summarising a document. Of course, even then you can't trust them yet.

> But then I do all that for all code anyway, including my own

I don't, at least not constantly. I review other people's code only towards the very end of a project, and in between I trust that they tell me about any pertinent challenge or insight, precisely so that I can focus on other things unless they draw my attention to something I need to think about.

I still think that working with a coding assistant is interesting and even exciting, but the experience of not being able to trust anything, for me at least, is unlike working with another person or with a tool and doesn't yet allow me to focus on other things. Maybe with more practice I could learn to work with something I can't trust at all.