it's a tool to be used like any other. If you are relying on it to produce working code with no effort on your part then yes it is likely useless. If you are using it to get you most of the way there its very useful. For example, I'm most comfortable writing python but have been doing a lot of c# recently, asking a code focused LLM questions like "how do you rename a column of a c# datatable" is so much quicker and more useful than trying to search through blogspam its not even funny.