I made notecards and used quizlet to practice for the quizzes and tests. No its not curved at all really. I put in about 4-5 hours a week, I should have done more but I made it out with a B. So it doesn't really require a lot, I am not including the time it took me to actually perform the lab or do hw. The 4/5 hours was strictly studying, I felt like the hw assignments and even more so the quizzes really make it clear what you need to know.
I did not have a whole lot of problem, do your labs and hw assignments, quizzes are open book for the most part and the exams (mid term and final) are closed book (but who's at your house?) =)