> The code Copilot writes is not very good code.

This has been my experience as well. Some of the early promo material for Copilot showed someone writing a function signature with docs, and having Copilot write the entire body. This rarely works for me, except for fairly trivial functions. This is also not how I normally write code.

However, where Copilot has been rather good is offering intelligent "tab completion", where it makes a suggestion for the next line of code. In particular, it seems very good at figuring out the structure of my code and making sensible suggestions.

I suspect that if anyone ends up using Copilot for the long term, they will (as a human operator) need to learn and gain intuition about how to use Copilot's strengths and avoid its weaknesses.