TAKE THIS PROFESSOR. SERIOUSLY. easiest A i have ever received in my life. Not only that, he genuinely cares about his students. He even made a facebook group where students can post homework questions and any questions that is related to the class, and he usually responds within 24 hours. His midterm and final exam was actually enjoyable. Professor Li wants you to succeed in his class and he would give very obvious hints on his exams. He basically WALKED THE CLASS THROUGH HIS FINAL. It doesn't get any easier than this and you actually will learn something.

Worst Professor I've ever met at the UCLA.
You will get the grade depending on your acting, not the grade you've got.If he likes you, you will get a good grade but if not, you never get good grade. I even don't know what my final grade is and asked him about my grade. HE NEVER ANSWER. He pretended to be nice throughout the quarter for evaluation sheet but if you finished it, he will change to be SOOooooo mean. NO replies, No care, even though you did gooooood job at the finals, your grade already been decided early before.