I started using Github Copilot a month or two ago for my personal projects. I can’t say that it’s been a net positive. There are more than a handful of problems that make me slower: Sometimes it suggests a closing quote or paren that isn’t needed. Removing the duplicate character is a pain. Because it’s a syntax error, formatters like Prettier or yapf start failing. Copilot isn’t great about following code style, so if you keep typing, it can sometimes be tough to track down which character needs deleting.