It can really speed up a senior dev working in an unfamiliar ecosystem. Concepts often apply across tech but syntax and implementations are different. Especially for the "declarative" things where, in my experience, the syntax is fiddly and it's not always easy to see where you went wrong. Speeds me up with Terraform, or a recent example was configuring some OpenSearch indices and queries. I've never worked with that before but it was able to help me get some boilerplate going that let me start iterating, much more quickly. I get more done when I'm outside my wheelhouse.

But one of the downsides of course is it occasionally sends me down a hallucinatory rabbit hole for something that doesn't exist, lmao.