Jane Choi is a wonderful teacher. My TA, Jin Aeng Choi, was amazing as well. The course is similar to Korean 1, but the material becomes more difficult with honorifics and such in the second half of the course. If you want to know about the course structure, read some of the Korean 1 reviews for Jane Choi, as this course is structured in basically the same way. Both the professor and my TA were very helpful, approachable and funny. Jane is always happy to have you at office hours. Most students don't go, which is a huge mistake. Most of the students who struggled with this class seemed to have slacked off and crammed before the exams. I had this professor/TA for Korean 1 and I am currently taking Korean 3 with them. If you ever have a chance to take a course taught by either of them, don't pass up the opportunity!