Not too easy. Not too difficult.
I would recommend it, because it is a decent introduction to what you need to know from DE. It's also not too difficult because he provides sample exams that clearly show problems very similar to the test. Study the samples and you're pretty much good.
I learned how to identify and solve various differential equations, ranging from exact and separable to homogeneous with constant coefficients and Cauchy-Euler equations.
Hours per week:
Advice for students:
Study the practice tests, and follow the book as he lectures. Also, make sure you sit in front because you can't see if you're in the back! The chalk board is the worst and he has bad handwriting!