It is a really good course. I love it.
The advantages of this course are:
1. Interesting and challenging assignments.
1) The assignments for c3 and c4 are challenging, which helps build self-confidence.
2) Although some problems are not easy, if you think more and try your best to debug, you'll make it! In this course nothing is impossible as long as you do not give up. Test files are provided for you to check your work, so it really depends on whether you are diligent. Keep at it.
2. Good instructors. They've worked very hard to make students learn more and understand more. To improve study experience, they even developed a useful tool OwlTest, where you can find all your submissions (including your code and test results).
3. If you have problems, you can go to the forum where you can turn to mentors. You are not alone.