[zeroCalories]

You're not supposed to ask it to implement something novel or large scale. You ask it how to use an api, or to refactor some code with a new class you made. You stack these up, and you can be way more productive than the person doing the equivalent of manual labor.

[hotpotamus]

It's a free text box, you can ask it anything you want, but yes; the answers to large scale questions have been quite lacking in my experience. But as a systems guy rather than a developer, those tend to be the actual problems that I have.