Having hands on help even after you graduate! Karl the Cofounder of Stateful does a great job at making sure you understand the data flow and the functionality of apps and really understanding Swift. I had no prior experience to Swift, and now Ive created apps that I am very proud of. (Karl I know how to iterate through a collection.)
Cons
Wish we had a longer time there. Don't get me wrong, I feel like I learned everything I needed to become an iOS Developer but somethings I wish we covered longer, but a 16 week program goes by very quick.
