It's moderately good at in-line commenting functions and creating full function doc comments for the specific language / documentation format you need, but its code generation abilities are still not game-changing. Getting it to generate anything longer than a few helper functions is a test of patience.
This wasn't always this case. I had zero Python experience a month ago, and managed to make a 300 line Python script that checks credit card validation, and has a beautiful UI. This would be impossible today.