This course was highlighted by fascinating and current material, an enthusiastic instructor, and problem sets that were related to the exams. Many students found the intel ectual chal enge and rigor of the course rewarding. However, several students found that despite her enthusiasm, the instructor was often dismissive. Many students were displeased by the amount of chemistry in the problem sets and thought feedback on their work took too much time to receive. Suggested improvements to the class were to have a few quizzes to take weight off the exams, more flexible office hours, and time in class to go over some example problems. Prospective students should know that there is a lot of content in one semester, a background in chemistry is useful, and the course is interesting and challenging.