I have been using Github Copilot for a month now and I love it. It is actually very close to pair coding. Colleague who point out your mistakes, remembers function names better than you do, does actually know regexp and also makes silly suggestions and mistakes.
With Chatgpt I noticed great use case with a list of numbers I had. They were copy pasted from somewhere and formatting those, reading into code/excel and doing some needed calculations (like avg, median and range) would have taken 5-15 mins of my time.
Now it was super fast and easy. AI didn't care about extra spaces and quotes, it did just understand the numbers and knew the math. I just delegated the task and got response back.
It did made one silly and strange mistake (427,00 => 4270,00), but after pointing that out everything was correct.