I use them all the time with success. For copilot it’s very useful for writing tests and autocompleting repetitive code. Like writing a Typescript interface that matches a JSON object, or listing properties of an object into an array. ChatGPT is at worst a good rubber duck, and at best a superpowered documentation tool. If I ever get confused by docker or some popular JavaScript library it’s able to give me a custom tailored answer that usually solves my problem on the first or second try.

Neither of them are any good at just writing a ton of code (unless the code is mostly boilerplate). But they’re amazing keystroke savers and a next generation stack overflow.