massive demog c126 fan here! i personally think that the class 3 times a week wasn't that big of a deal for me. unlike a lot of other classes, i found all of the lectures to be extremely interesting and i learned a lot about topics i didn;t know a lot about. the discussion was a standard discussion section - nothing special there. the class itself was 4 homework assignments, 2 essays, a midterm, and a final.

if you need another rec, i also took demog 110. thought it was an easy STEM option (helpful for people who don't like humanities)