This is a pretty average class.
The workload is extremely light: there is no homework and you do not need to read the textbook at all, since everything is in his lectures.

His lecture videos were, however, all out of order. There also weren't any practice exam questions besides a few recommended hw problems, some of which have nothing to do with anything we learned. So the clarity is lacking.

However, if you take really good notes during his lectures, and watch each lecture video multiple times until you truly understand the intuition behind the concepts (not just memorize his words), then it is not impossible to do well in this class. It's all about taking good notes and religiously studying his videos until you understand intuition. After you've watched the related lecture videos, try all of the recommended textbook problems, but skip the problem if it doesn't correlate to lecture or if the solution contradicts lecture content. Don't be scared away from taking this course with Klein; I found it to be just fine, and I didn't need to study a ton each week. As long as you prepare hard for the 2 exams, you will be fine in this class.

Great professor. Highly sympathetic. Don't understand the so-called petition calling for his fire. As a POC, I don't think he is racist, to the contrary he is a great teacher. What else do y'all expect him to do anyways? Give POC A+ as a freebee? That would cost him his job and integrity.

Mediocre professor, class videos are messy and you have to figure out the order to watch them in (he provided a list that missed many videos). Time commitment is small, and not many test prep materials provided. Open book exam.

Not a fan of Klein. I thought his lectures focused a lot on stories and concepts that weren't relevant to what we needed to know, and attending his lectures didn't help me for the exam. The textbook and the problems in it are useless because Klein writes his own questions and with a pretty different approach. I memorized the course reader, but the problems in his course reader are much simpler than the actual exam questions, so it's only helpful to a certain extent. His questions are somewhat confusing and can be interpreted in different ways, and make you overthink when the actual answer is more simple, which frustrated me. I got an A in Ravetch, but a B+ in Klein. Take that for what you will.