Most Helpful Review
She is a boring instructor. She talks extremely slow and glances over important and complex material like we just understand it the first time we're exposed to it.
I stopped going to lectures because there is no point. She just repeats everything on the slide verbatim.
Make sure you do a lot of different kinds of practice problems. I felt like I understood the material rather well but ended up getting a 80 and 76 on midterm 1 and 2. Both above average. The reason being is that she tends to through in some tricky questions but still completely doable but I still misunderstood the question. MAKE SURE TO READ THE QUESTION CAREFULLY OR YOU MIGHT NOT ANSWER THE QUESTION SHE IS ASKING.
The TA, Josh, is very helpful and I highly recommend you attend discussion (beside the fact that it's 100 points of your grade).
If there is a better instructor teaching LS4 I suggest you take it with them. I did not like Chen at all, although I did felt like I learned a lot (probably just from doing a bunch of problems and reading the book and the TA).