Roy is a great TA. He really cares about his students, which is obvious by the amount of extra office hours he offers his students and effort he puts into his lessons and quizzes. He designs and grades his quizzes and exercise questions to be similar to Coppock's exams which REALLY helps with the exams. That said his quizzes can be a little difficult, but he drops the lowest one and some are open notes. Some people weren't his biggest fans because he's very fair, but usually those are the salty students that don't want to put in much effort. Also attendance is optional and if you're respectful to himj/put in effort he'll give you some extra credit at the end of the semester.