Before CNS, I had to photocopy notes from senior students and hope they were accurate. Now I read every topic ahead of the lecture and ask sharper questions in class. My CGPA jumped from 3.45 to 4.12 in one semester.
Coming from a state school, I felt I was always playing catch-up. CNS gave me structured Python and data-structures material I could work through at my own pace. By second year I was contributing to my project group instead of being the one asking 'what does this mean?'
Use of English is the course everyone underestimates. The CNS unit on argumentation and academic register changed how I write essays, not just for GES 101, but for every Law course I've taken since.
I commute over an hour to school. The mobile reader and downloadable formula sheets meant I could actually study on the bus. That alone is the difference between passing thermodynamics and failing it.
Anatomy in 200 level was overwhelming. CNS broke each system into shorter units with practice questions at the end, I could see exactly where my gaps were. By the end of the semester I was tutoring two of my classmates.
Our department doesn't have enough lecturers for the number of students. Without CNS I would have learnt half of what I needed for ECO 101. Now I'm preparing for econometrics in 300 level feeling actually prepared.