I’m a professional software dev and I use GitHub Copilot.
It’s most useful for repetitive or boilerplate code where it has an existing pattern it can copy. It basically saves me some typing and little typo errors that can creep in when writing that type of code by hand.
It’s less useful for generating novel code. Occasionally it can help with known algorithms or obvious code constructs that can be inferred from the context. Prompting it with code comments can help although it still has a tendency to hallucinate about APIs that don’t exist.
I think it will improve with time. Both the models themselves and the tools integrating the models with IDEs etc.