I've been using GitHub Copilot for a week and my experience is that it is indeed incredible sometimes and saves from having to write repeated or boring functions, but more often than not it is not incredible, it is wrong, and the constant stream of wrong suggestions distracts me from what I had in mind and was writing.

Plus it has also tricked me into thinking it had written correct function implementations more than once and led me into wasting time debugging its errors just because I wasn't 100% attentive while checking what it had written for me.