Once you get a sense for LLM workflow, sometimes the task is not appropriate for it and you do write by hand. In fact, most code I write is by hand.

But if I want a new system and the specs are clear, it can be built up in stages that are testable, and there are bits that would take some research but are well documented… then it can be a win.

The studies that say devs are slower with LLMs is fair because on average, devs don’t know how to optimize for them. Some do though.