[agosz]

I have tried using LLMs on the legacy C++ codebase that I work on, and the only thing it could reliably do was generate code for unit tests.

When I fix bugs, it's usually not helpful because I need to debug and track down where the bug is.

When I develop new features, it occasionally uses the wrong lock, or makes up APIs that don't exist. I find it gets in the way more for development.

For C# and .NET core, I found IntelliCode to be pretty useful.