This is an incredibly difficult class. You will learn a lot, but the exams and homework are on a different level. I think everybody gets out with a good grade, but it's gonna take a lot of work. I highly recommend going to office hours for help on the homework, and going to class every day is pretty much necessary to getting a good grade. If you miss a single day of class, you'll be really behind on the concepts because Christou literally created the content of this class, which is unavailable on a textbook that guides you, so he's the only guide. Pay attention in class and do your best!

Class was extremely difficult, but that makes getting a good grade all the more satisfying for this class

Super hard tbh. But also very interesting and filled in the gaps where 101A was lacking. I would suggest taking it at the same time as 101A, which I did not do. Homework is tough and time consuming. If you didn't take 100B with Christou, it might be a bit difficult to adjust to his teaching style. Exams are extremely difficult (there was one where I didn't have a confident final answer for a single question), but he curves generously. Homework is also tough but prof holds a TON of office hours.

Great Professor always willing to help. Tests are hard but the class average is around the same and there is no need to worry about your final grade. Christou genuinely cares about his students and their growth in the course.

Clear class notes, but not posted. Attendance is not required but to fill out the notes you have to be there. The tests are extremely hard but the curve is extremely generous.