This last month I decided to try the Jetbrain equivalent of Cursor, for their IDEs (https://www.jetbrains.com/ai/). It's a pluging well integrated in the code editor that you can easily summon.
I work in Rust and I had to start working with several new libraries this month. One example of them is `proptest-rs`, a rust property testing library that defines a whole new grammar to define the tests. I am 100% sure that I spent much less time to get on-boarded with the librariy's best practices and usages. I just quickly went through their book (to learn the vocabulary) and asked the AI to generate the code itself. I was very surprised that it did not do any mistakes, considering that sort of weird custom grammar of the lib. I will at least keep trying for another months.