Prof Vucelja is a kind professor and is super helpful in office hours. The Griffiths textbook is extremely well-written, so her lectures are really meant as a supplement to the textbook. I found several of the homework problems to be challenging, though I also tended to do most on my own (it would have been easier if I had worked on them with others). We had two exams and both were fairly easy; exam questions were similar to the homework and practice exam problems. She is also generous with grading; if everyone did poorly on a question she graded lightly. I was worried this class would be extremely challenging, but on the whole it was not so bad.