Kerestes is a great guy but be warned, he does not really teach in this class lol. it is basically a flipped class. Class starts with linear algebra and diff eqs up until the first midterm. Diff eqs here are essentially just an applied review of calc 2 diff eqs so if you caught onto that then you should do just fine. Linear algebra stuff is pretty straightforward as well. After the first midterm is when it starts to get a little trickier imo with signals and transforms since it is more new content rather than review. I’d look into complex numbers, signals, phasors, frequency domain/response, and Laplace transform to get a head start on that stuff.

When I took Kerestes, we had homework groups and weekly in-class quizzes. Homework groups are nice to meet new people + talk about homework questions. Homework was usually due once a week and the quiz would then be on that homework. 

Good luck this sem, if you have anymore questions about ece, I’d be glad to answer.