There are a lot of super negative reviews on Rescorla right now but I personally didn't feel that negatively of him. I went to most lectures and every discussion and only went to my TA's office hours once for a paper and I thought the class was relatively easy. There are three papers and a final. While it's true that the grading for the paper is super vague and was never clarified, I thought the final was super easy. He did hand out a study guide with a list of concepts that we covered and some practice questions of what could be on the exam (some of these questions actually did end up on the exam) and I filled that out a day or two before the final. At first I thought his lectures were pretty interesting but as the quarter dragged on, so did his class. But, he highlights all the important information you need to know in his slides so as long as you write that down and go to discussion, you should have everything you need to do well in the class. It was inconvenient that he never uploaded anything on CCLE but the papers were graded by the TAs so if you're worried about not doing well on the paper, I recommend going to your TA's office hour.

I never talked to him but he did seem a bit stuck-up (he definitely went to Harvard and I'm pretty sure it was for his PhD in philosophy so) but he gives you all the information you need to know in his lectures. Philosophy papers are completely different from any other kind of paper so it was really hard getting an A on the papers but again, just talk to your TA. Your success in the class really depends on your TA, as they grade your papers, your final and your participation. I was angry about the course reader; it was $50 and I looked at it twice and didn't ever need to again. But I truly don't think the class or the professor was as bad as people say. I'm pretty lazy and only try when it's important and I'm confident in getting an A in the class (grades have not been released yet). I definitely don't have a special knack for philosophy or anything (this was my first philosophy class) and I thought this class was pretty enjoyable and interesting.

I had a blast this quarter in Phil 7 with Professor Rescorla! Never taken a philosophy class in my life until then, and I came into class every time looking forward to his lectures (which I will say, he's one of the best lecturers I've had at UCLA). Topics and questions for the final came directly from the study guide, and you probably didn't need to study much if you paid attention in class.
However, I do agree with the reviews below in that there's definitely room for improvement for this course (the 2 areas being integration (or omission) of the course reader as well as a concrete rubric made publicly available to students for each essay assignment).
So I'm left feeling ambivalent. The course needs some work, but I thought Professor Rescorla was amazing!