Of course. No one's going to learn a thing by just showing up and listening to an instructor. Whether that's an iOS Dev Bootcamp or Physiology.
I put in hundreds of hours beyond regular class time. And yes, definitely working through struggles on StackOverflow and online tutorials.
I chose this because, for me, it's a lot easier to sit back and watch TV or play around without the financial, time, and personal commitment of signing up for a class. I had somewhere to be. My wife and kids knew I had somewhere to be. So it was a full family commitment that made it work.
Very cool to see what you were able to build in only 12 weeks.
Why did you choose this, instead of learning yourself. Didn't you still have to do all the work to learn even with the program?