I do use it and I'm very picky when it comes to writing code.

Here's example of tiny webapp I wrote recently: https://github.com/vbezhenar/pwgen/blob/main/pwgen.html

Of course it wasn't Copilot writing it, but it definitely helps with boring parts. Like I'd write

    const charactersElement = document.getElementById('characters');

and rest 10 lines will be written with Copilot with minimal assistance.

It's like having stupid but diligent assistant who's happy to copy&paste&adapt parts of code.

I can't claim that I often use fully generated Copilot functions. Sometimes I do, often with significant rework, but that's because, as I said, I'm very picky.

I paid GitHub $100 already and don't regret it.

Though I think that Copilot has plenty of features ahead.

For example finding obvious issues in the code would be very useful. Like typos.

Another issue with Copilot is that it only generates new code. Imagine that I need to edit 10 similar lines. I edit one line and I'd like Copilot to offer other edits.

Also UI is lacking. Like it generates 10 lines but I only like first line. Now I have to add 10 lines and delete 9.

But I'm sure that those are obvious directions.