For me the main benefit is what I would describe as 'rubber ducking discovery', using it as a learning tool I am able to try out different problem domains that are completely out of my area, things like:

- Web scrapping

- Web crawler

- Trying out Rust

- Trying out pytorch and training models for computer vision problems

This is all stuff that would have taken me several weekends of reading docs and geting familiar with libraries.

Now it suddenly becomes a few hours because the discovery of the right tool is semi-instant and although the code it provides is often wrong it generally puts you in the right direction.

My intuition is that it's a lot better at outputting viable Python and JS code than other languages, perhaps there is bias in how much data of other languages it has access to.