I use it to reduce the drudgery of writing code like this. I've found I have to do a lot of hand-holding in terms of telling it what data structures and logic it should use. I also just directly tell it what changes it needs to make to fix big bugs or logic errors I spot. That gets it to the point that I can tweak it myself and complete the code.

One of the frustrating things is that it doesn't ask for clarification of something that's unclear - it just makes an assumption. Really demonstrates why software engineering interviews emphasize the candidate asking clarifying questions.