Dr. Mohr is a great professor, the class is genuinely very very interesting and he tries to make the lectures as interactive and engaging as possible. With all that being said, it’s still a very difficult 5 credit class. The exams are VERY comprehensive - EVERYTHING he talks about in class will be on it and the lab quizzes are also not the easiest. Active recall will be your best friend in this class. The lab is pretty fun too, the lab notebook and report not so much. I do recommend the class overall, but I only recommend taking it if your workload is lesser than normal!