AI autocomplete is the best thing I've experienced in developer experience in my career since git won over subversion.
I don't use LLM code prompting, but autocomplete is my jam. It's getting things right 90% of the time when I'm plumbing fields or refactoring. It makes life so much more pleasurable, and I say that as someone who is already using a statically typed language with robust IDE refactoring capabilities.
It's absolutely made me more productive.