My job involves a lot of shimming code in between systems that are archaic, in-house, or very specific to my industry (usually some combination of the three), so the problems I'm usually solving don't have much representation in gpt's training data. Sometimes I get to do more rapid prototyping/sandbox kind of work, and it's definitely much more effective there where I'm (a) using technologies that might pop up on stack overflow and (b) don't have a set of arcane constraints the length of my arm to contend with.

I'm absolutely certain that it's going to be a core part of my workflow in the future, either when the tech improves or I switch jobs, but for right now the most value I get out of it is as effectively a SO search tool.