I am a law student and have used it for legal research. Chatgpt is a good substitute of normal Google research. It helps me understand a brief overview of the topic and maybe a few points of contentions. However, u can never rely on the material for sure, surely not for references. It makes up cases that doesn't exist, books/articles that have never been written!

Start your research with chatgpt but it's product must not be the final thing u submit, every single fact must be cross-checked

Citing and copy pasting case laws from ChatGPT is a really good way to know whether your professor reads your papers....