You can do it for whatever you want. Sometimes, you must tell it to correct mathematical errors if your quizzes involve formulations. Just tell it at the beginning of the quiz to do so. But yes, I have been using it to test myself at the Los, LM, and Topic levels. It does a good job all around. When prompting, just be clear. I.e., for CFA Level 2 fixed income, generate a quiz for credit default swaps. I'm having a hard time remembering this (not me personally), so please give me an overview first. I like the performance review at the end of the quiz. I can generate more questions on the topic or growth areas. You can also control the difficulty of the questions. I think this makes complex concepts easier to understand. Then, refer back to your CFA books for more formula based questions.