I took PH 150 with Professor Detels and it was an alright class. It gave good exposure to the different aspects of public health and helped me find out what I was interested in. Unfortunately, Detels doesn't really teach most of the class. I found the other guest speakers not quite clear. Grading wise, I found this class much harder than Bruinwalk raters said. I was actually concerned about my grade in this class. You definitely need to memorize the slides which can be hard since some lectures have 100 slides. I definitely underestimated the amount of studying needed for this class and didn't do so well on the midterm. His questions can be tricky too. Overall, this class is a hit or miss. I got lucky in the end and did well enough on my final to ace the class. I wouldn't say that the readings are integral to acing the class. It really is mostly just the memorizing the slides unlike what the TA's say. It does seem like this class is getting harder and harder since the older exams that he gives out seemed much easier.