Totally chill and super nice instructor. Really patient with questions if you want concepts clarified. Kristen clearly cares about the course as she dedicates a lot of time outside of class to answering questions in extra help sessions and over emails.
Midterm and final were super easy- they were basically questions we had seen in some form in class or in homework.
The homework grading was also ridiculously lenient. I have no idea how she grades her homework because there were a couple of times when I went over the graded homework and realized I got full credit for questions that were done completely wrong.
Basically, if you're not getting an A range grade with the combination of Kristen being super available to answer any questions you have, her TAs' ridiculously lenient grading, and random bonus points at every turn, you're doing something wrong.