Filler's class was organized horribly and taught too slow. He's knowledgeable in the subject, but he's not good at teaching it. For assignments and exams, we had to type our answer into a word document, save as a pdf, and email to him(through outlook) instead of taking it through canvas. It's not like he acknowledges your email, so you won't know if he actually received your assignment

Study hard and attend office hours