For a lot of use cases it's powerful.
If you ask it to build out a brand new system with a complex algorithm or to perform a more complex refactoring, it'll be more work correcting it than doing it yourself.
But that malformed JSON document with the weird missing quotation marks (so the usual formatters break), and spaces before commas, and the indentation is wild... Give it to an LLM.
Or when you're writing content impls for a game based on a list of text descriptions, copy the text into a block comment. Then impl 1 example. Then just sit back and press tab and watch your profits.