While I do think Professor Larkin structures his class in a doable way, and the homeworks/exams aren't too bad, I'm very hesitant to write anything good because I didn't enjoy the class because of him. He lectures mainly with slides and skips through necessary math/tries to cram in more content by going through slides quicker. His lectures on the board were much better but these were few and far between. He also was quite disrespectful and unwilling to accommodate for students at times, i.e. at least two students that I know of came down with serious illnesses and he did not respond to any emails requesting extensions for homework. He was also quite snarky if you asked a question he believed you should already know or if you asked for any change in grading/extra study materials for exams. This behavior, combined with the knowledge of his sexual harassment of a former graduate student here at UCLA, made me incredibly uncomfortable interacting with him and I didn't feel comfortable attending office hours which I feel impacted my learning of the course material. Please read this article if you're considering taking his course: https://medium.com/@emilymartin88/title-ix-inaction-at-ucla-astronomy-61065540a39e

Title IX Inaction at UCLA Astronomy: https://medium.com/@emilymartin88/title-ix-inaction-at-ucla-astronomy-61065540a39e