Fall 2019 - Both the textbook and workbook are quite necessary for this course but are reasonably priced so shouldn't be a problem. If you show up to all classes and discussions you barely need to study aside from maybe 20 minutes of quizlets beforehand for the daily quizzes in lectures which is probably the hardest part of the course. Course is incredibly accessible to everyone and is super fun so would recommend even if not super into Korean pop-culture (am not Korean nor was too invested in Korean pop-culture.)
Winter 2020 - Again, highly recommend taking this class as well as this instructor! This quarter was definitely a bit harder and the first midterm was actually quite challenging because of all the new grammar rules introduced but afterward it wasn't bad at all. The quiz format changes about 2/3 into the quarter where you have to now place the vocab words into context which honestly made it easier because you don't have to completely memorize all the words if you guess from context. Pay attention to the things she says to memorize during the lectures as they'll usually come up as extra credit opportunities during quizzes. Quizlet and come to class and you'll be good!