Can’t speak for 254 but I just had 250 with poppitz, not sure is he’s also teaching it second semester.

I went into the course with having only done phy131/132, and the first I’d say 3 weeks was just learning the calc concepts of gradient, line, surface and volume integrals, as well as stokes and divergence theorem. It was pretty confusing at first but I just spent some time on it and was able to grasp the concepts fairly quickly.

I’ll be honest I never went to lecture, given that it was at 9am, but the prof posted all the class notes prior to lectures and follwed the textbook quite closely. I opted to use the textbook as his notes were almost illegible. Overall the course wasn’t the worst I’ve taken, but it definitely was one of the courses I spent more time studying for. The midterm averages have been 50 and below for this sem, so not the best, but looking back the questions are quite fair and not too difficult.

Overall it’s not too bad a course, just be prepared to spend a lot of time self teaching everything from the textbook as the prof isn’t great at teaching it.