I've recently started using Cursor because it means I can now write python where two weeks ago I couldn't write python. It wrote the first pass of an API implementation by feeding it the PDF documentation. I've spent a few days testing and massaging it into a well formed, well structured library, pair-programming style.
Then I needed to write a simple command line utility, so I wrote it in Go, even though I've never written Go before. Being able to make tiny standalone executables which do real work is incredible.
Now if I ever need to write something, I can choose the language most suited to the task, not the one I happen to have the most experience with.
That's a superpower.