The most simple explanation for rizz is that is slang for charisma. I know there are more complicated answers out there. Its generally described in terms of a man’s ability to ask a woman out. But this field is not gender specific. It will help with confidence, and charisma. It will help with knowing what to say. Being a “smooth talker.“ Not insincere, smooth but from the heart. The words will just come to you. Making speaking much easier, much smoother.
Will it help you ask a person out? Absolutely. Will it help with landing that dream job in the interview, absolutely. Will it help you write a college essay and get a better grade? Absolutely. Why? Because this field helps your speaking ability, confidence and charisma. Those skills can be life changing.
I know I have some similar fields. So, to the question of which is better. If you want charisma, charm, and confidence. Then this field is definitely for you. And you don’t need to listen forever, you don’t need to hang on.