To me at least the only thing I ever learned from was doing it and make my own experience which often would if not contradict what I read about then at least illustrate that nothing beats doing.
Like previous commenters have mentioned, much of the advice/content is bound to be readily available online, and nothing replaces firsthand experience. However, we believe that in this environment, founders will be able to glean some new insight through advisory sessions and group office hours.
I just I am just in general of the believe that other peoples experience as entrepreneurs are mostly fascinating tales from those who ventured rather than useful information, it's just too complex and fast moving for it to be educational (unless your like to study entrepreneurial history :) )
I just don't think statistically, it has any significant impact on whether you become successful or not. But sure it might save you from some beginner mistakes.
The rest see an opportunity and hire the financial, legal and technical and other advice they need.
IMO what you will find the most is that luck has a proportionally large part to do with your success.