I don't use the autocomplete option of Copilot as that's too annoying and distracting, BUT I do use the chat from time to time instead of googling for stuff. Once I'm done I hide the panel in Rider/VSCode/Zed/Visual Studio etc. until I need it again. As I've written in comments before, I think using Copilot is good when you're working on something new or you know exactly what you want, but perhaps maybe the approach you've used before can be improved (or you think it can be improved). In those cases Copilot can be a powerful exploratory tool.
The default autocomplete behavior of Copilot is such noisy, hot garbage.
The sidebar is a useful tool sometimes, akin to pair programming with a junior programmer who's terminally online and brimming with random ideas.
Where I think they've really hit a sweet spot is with the new Inline Chat feature, I can select a chunk of code, hit CTRL + I, and tell Copilot I want to refactor this code to do XYZ. Suppose you need to extend a function with an extra parameter, the logic to handle that, and some appropriate error handling. You can select your function, type that in one sentence, and Copilot's inline chat will mostly just get it right and propose an amended function for you to accept. This has been a big time saver for me lately.
Notably Copilot is NOT doing much, if any, thinking for me. You really don't have to push it far into unknown territory to turn it into a gibbering lunatic. So in the sidebar it's essentially doing a (mostly) better version of a web search than Google. In CTRL + I it's kind of a macro on steroids. But these are both great tools and very easily justify the subscription fee.
