It's particularly frustrating that it's simultaneously superhuman and incredibly unreliable when it comes to cognition.
E.g. it can whip out 100,000 lines of code in the time you'd write 500...but 5% of that code will be janky, or subtly buggy, etc.
It's the "oh...you're absolutely right!" effect. I can't think of any other tools that are so powerful yet so finnicky and almost guaranteed to fail in ways that are so difficult to detect.