I came into the class with no linear algebra or calculus III knowledge, so I struggled a little more than my peers. The professor was new and wasn't great at teaching concepts, but if you go to office hours or ask questions during class, he can definitely go back and explain something again. Turns out a lot of the people in the class are just as confused as you, they just don't say anything.
The class consisted of four quizzes worth 5% of your final grade, a midterm, and a final -- they're all pretty fair and very similar to practice problems you do in class, not like the crazy hard mastery problems he gives.