Comment by flir

If you do "please review this code" in a loop, you'll eventually find a case where the chatbot starts by changing X to Y, and a bit later changes Y back to X.

It works for code review, but you have to be judicious about which changes you accept and which you reject. If you know enough to know an improvement when you see one, it's pretty great at spitting out candidate changes which you can then accept or reject.