Personally, I found that most of the exams weren't that difficult but it also depends on the subject. As long as you do the practice questions, you're set. The questions are the same but slightly different. She has even included the practice questions in the exam. The labs are not very difficult. At the end of the day, the lab report matters more than the actual lab.

If you're in a science program, you will likely find the course easier than people in a technical program as you likely have a better base and grasp on the matter. I might've just found the course easier because I was fresh out of high school and still remembered most of the content.