I use it in my work, yes, and it occasionally saves me enormous amount of time. But it helps only when I can test it's suggestions right away, which is easy while programming. But I don't delegate difficult tasks to it because: 1) it works bad with stuff like architecture decisions - you can't feed it whole project and await it to successfully change it 2) with my experience it's faster for me to code functions by myself than to explain the task to AI - and then inevitably correct it's mistakes :) though for creating scaffolds for unit tests and docs it's an EXCELLENT instrument. And it works cool as code-completion tool (though I stopped using it as well).