Professor Rubin is great. He's a great lecturer and it is clear he really cares about the well being/success of his students. Highly recommend taking his class.

The best professor! He's super considerate and caring of his students. During the first two weeks, he sent out multiple surveys asking how we felt about the class so far and really took into consideration our opinions, which led to him adjusting the workload and format of the class around what we felt most comfortable with. Also, his lectures are really clear and helpful. We had worksheets and quizzes every week to complete, but they really helped in the learning process and weren't too difficult at all, and his midterm and finals exams were very reasonable. The professor really influences my enjoyment of a class, so thanks to him, I loved this class so much.

Professor Rubin was great, he was very good at explaining things and giving clear lectures. He did super well with the online format, and the recorded lectures were super useful to go back and reference. His exams were very reasonable, many professors made 24hr exams that honestly required the whole day, but his were reasonably possible to do in a timed class setting (although the second midterm and final were harder). There were some things where I felt like I never actually figured out how to solve problems until I did practice homework, the class time is less focused on examples and more on concepts. Overall, a very solid class, I definitely recommend.

Professor Rubin is one of the most sympathetic professors I have encountered at UCLA so far. The material in this class is definitely challenging to learn, but Professor Rubin's explanations are fantastic. I recommend completing the reading in the textbook to supplement what you are learning in class. I also highly recommend going to office hours if you are struggling. Professor Rubin is extremely patient and kind, and he has a great sense of humor.

Professor Rubin is an amazing lecturer and teacher. I will preface this by saying that I am not good at math. I've never naturally "gotten" it and it has ALWAYS been a subject I've struggled in, so the fact that I somehow managed to get an A should say something about how good this professor is.

Professor Rubin really made it possible for everyone to succeed and learn. I will be entirely honest; I was one of the very few students who didn't really understand what he was saying (I had no prior experience with 32A material AT ALL and I struggled with a lot of basic concepts), but that was on me, not him. He did such a great job outlining the topics and walking through them with his students. Quizzes, homework, tests were all very fair. He was clear with his expectations, followed through on his promises, and was very accommodating. He was super sweet and understanding too. Seriously, if you get the chance, pick Professor Rubin as your professor. He's awesome.

Lectures: Rubin is a pretty good lecturer, but the information itself is quite hard to understand. We deal with 3D regions, so it is hard for Rubin to draw at times. I don't think relying on the lectures will guarantee success.

Quizzes: There were weekly quizzes, and they were very reasonable. Most questions were directly based on the homework, so you're guaranteed at least a 3/5 if you look at the homework. He also drops your two lowest quizzes.

Homework: Homework was optional.

Exams: Because I took it during online classes the exams were open note, 24 hour exams. He made the exams in a way that google would not guarantee you a good grade, but as long as you can do the homework the exams are very reasonable.

Tips: Reading the textbook before each lecture will make understanding the material exponentially easier and will save you a ton of frustration. I recommend doing the homework, but if you don't want to, at least go through each problem and make sure you can do them.

Professor Rubin is a great professor. His lectures are clear, but filled with a lot of content. He always pauses for questions and is always willing to help, which I like. Since this is an honors course, we learn about 1.5x the material than regular 115a (Topics we learned that I don't think are covered in 115a: dual spaces, double dual basis, transpose, determinants, Real and Complex Spectral Theorem, Singular Value Decomposition).
All his lectures are recorded and he uploads them to CCLE rather fast. Discussions are usually recorded but to be honest, I only attended them two times (I'm so sorry Bar). If you don't have much proof experience, this class will help you transition into proof writing. You'll learn the proof techniques during the first few discussions.
Our primary textbook for this class is Linear Algebra by Hoffman and Kunze, but you can find the PDF of it online. You'll need this book because he assigns some homework assignments from this book. This book is a little hard to read, but whether you're taking 115a or 115ah, I would definitely recommend Linear Algebra Done Right by Axler.
His grading scheme is as follows (only one grading scheme):
30% Final Exam
15% Midterm 1
15% Midterm 2
20% Quizzes (Lowest quiz dropped; 8 quizzes)
20% Homework (10 HW assignments)
Usually every week on Thursday, expect a quiz. These quizzes always stressed me out but it'll help you stay on track. There's a 24 hour window to take the quiz, but after opening the quiz, there's a 30 minute timer to take it and submit it. Each quiz is two problems, usually these are short proofs. Doing the homework assignments is a good way to study.
There's a homework due every Thursday at midnight. He uploads the homework assignments in 3 parts, which total to about 8-10 problems a week. Only 3 problems will be graded for corrected, and he'll tell you which problems these are. The rest of the homework is graded on completeness. Try to start them early and don't procrastinate. On average, I would say I spent 3-6 hours a week on homework, but Rubin and the TA are very helpful on Piazza and Office Hours.
There are two midterms for this class. I felt the midterms were slightly harder than the homework, but the averages were high. Midterm 1 had an average score of 39.8/50, midterm 2 average was 42.81/50. There are five questions on each midterm and I spent the whole day working on it. FYI: He took nine days to grade midterm 1, and ten days to grade midterm 2, which is pretty fast. After he publishes the exam scores, he also uploads the solutions to CCLE which are very helpful.
The final had 10 questions which took me more than 12 hours to complete. The final felt much more challenging than the midterms, so I don't think I did well on it.
Rubin cares a lot about his students. At the beginning of every lecture, he conducts a Zoom Poll asking how we're doing. He also sends us several surveys asking us for feedback and our opinions about the class. Do these surveys because he is really dedicated to improving and making the class better for his students. Linear algebra isn't my favorite subject, but I definitely learned a lot in this class. Overall, I would definitely recommend Rubin!

Edit: The final has already been graded (only took two days to grade). The mean was 72/100 with standard deviation 17.
My calculated grade of 77% turned out to be a C+, so I'm not too sure how generous his curve is.

Professor Rubin is the best math teacher I've ever had without a doubt. He is incredibly gifted at explaining complicated topics in a simple manner. I came in as a CS major with little to no appreciation for Linear algebra after a shaky 33A, but ended up learning a shit ton over the course of the quarter. It's hard not to gain an appreciation for this class when starting with literally nothing but addition and multiplication, and ending with super complex theorems. If you have a choice between this and normal 115A, I would say take this without hesitation. Rubin is the GOAT and you absolutely cannot go wrong. The only negative is that it is workload heavy but its kinda necessary to reinforce the concepts. 10/10 recommend this class.

Rubin's great. The other reviews probably say more than I can.

Jonathan Rubin is a rare breed. He is not only one of the greatest math professors but greatest professors out of any that I've ever had. I really struggled with this class. Like, REALLY struggled. I wasn't sure if I was going to pass. Dr Rubin though, was always there to help. It was so satisfying to start completely lost and end up understanding the content enough to feel confident in what you wrote down. He is extremely generous with his time and is always willing to clarify, go back over a prior topic, or help you see what to improve on. If you are willing to learn, and ask the questions, you will pass. He is kind, can be funny, and you can tell that he is genuinely passionate about what he does. Though I wasn't the best student, and others did much better than I, you can see that my sentiment is not unique by the many other positive reviews he has. Take this class, and it will be an experience for the better.