What’s actually wrong with ChatGPT?

I’ve been reading and listening to lots of stuff on it and have practiced using it myself. I’ve worked with lots of students who get accused of cheating because of similar writing. They say the same things they do in class but the teacher doesn’t recognize them as much since it’s written. I’m just confused.<br><br>What is actually wrong with it? I’ve used it to help me brainstorm when I’m stuck and it’s been really helpful. <br><br>Thoughts?