The one thing I learned in college is to choose classes based on intel gathered from Ratemyprofessor.com. But I mostly focus on the negatives because they give you better insight into the person writing the review, not necessarily the professor. Bottomline, some of these negative reviews actually indicate a good professor, because an easy A may harm you in the long run. Also, a review where the professor requires the student to think more and write less is more engaging because they’re not spoon-feeding information. Most professors use prompts that make you deconstruct the sentence and that helps you understand how to engage your mind to know exactly what is desired for the outcome. IMO engaging your mind during each conversation and not assuming intent is a life long learning task.