The channel provides great tutorials for developers across many different languages/frameworks, which is very helpful when trying to figure out how they are doing something in another language or framework than what you know! I also like that there's an option of subscribing so it doesn't cost anything extra if your employer has paid subscriptions already (which most do). It can be frustrating at times finding things with no search functionality - but overall this isn't too bad because other channels have better tools as well. We've used C9 mostly just watching some video training courses from their library about specific topics we were having trouble understanding.