If you haven't tried any of the newer models from the last ~6 months, you're out of touch. A year ago, LLMs were essentially just a clever search engine for me, I found they fell apart pretty quickly on bigger codebases and more complex projects.

It doesn't always write perfect code on a first pass but nor do you, and it's amazing at understanding any issues it may encounter, even very low level ones. I don't think there's anything I can do that it can't now. There is a learning curve to working well with LLMs, but once you get there you'll be producing high quality code faster than you can imagine.

Part of me wishes they weren't so good. I enjoy(ed?) the process of working through problems and it does mean you might no longer have a perfect mental model of your code. But I do also enjoy being able to build things well and fast.