What AI Code Assistants really miss?

Based on your experience, what did GitHub Copilot, Codium, Cursor, or any other AI assistant miss?

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* Solid generation of PRs
* Help to Prompt - Eg: Guidance to breaking down complex tasks
* Quality of replies/output
* A simple UX for non-developers
* Other - please add in the comments

Asking this because I and a friend need to pivot our AI code assistant to something else.

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