Yeah it's not a miracle, but it's probably useful. I find the most common scenario for when the LLM wasted my time was when I was asking it how to do something which can't be done. Like I would ask it how to use library X to do operation Y, where in truth library X doesn't support operation Y. Rather than responding that I should find a different library, it would just make up some functions or parameters. When it works well, it's faster than hunting down the docs or finding examples/tutorials.