The class itself isn't as hard as people make it out to be. Your lowest exam and 3 lowest HW assignments are dropped, and she offers generous bonus points. I did have to teach myself most of the time, though; the help videos on WebAssign only tell you the answer without explaining how they got it. As a professor, Dr. Kwon is apparently inaccessible at times and a bit blunt when she does respond. That's just what I've heard from others, I've never had to contact her myself so do with that what you will.

TAKE THIS CLASS ONLINE! Lectures are optional and the content she covers is already verbatim in notes that she posts online. Also, her exams are literally the questions from the HW, same format/wording just with different numbers. Only study what you need to!