My mind is blown by the people saying $10/month is too much. $10 a month for this is an unbelievably good deal! If you value your time, this is a ridiculously good deal.
That being said, my biggest issue with CoPilot is that it's a ML system trained from open source and public repositories. Also straight from the website, "By using GitHub Copilot [...] you help to improve GitHub Copilot." I'm now paying for the privilege of handing over my data to GitHub so they can combine it with open source code to make more money off of people who are convinced it's somehow saving their company money.