I participated at first FI course in Israel. For me it was a very disappointing experience.
Before registration I participated in several preliminary lectures delivered by excellent lecturers. I was as well promised to receive a tutor from a leading US company.
Once the course started the level of the lecturers and tutors dropped unbelievably low. We were also asked to grade lecturers.
I should mention that the main effort of this course is to make 90% of registered participants leave the course. Never understood the idea, except make those who remain believe that they are really good!
I should also mention that I own a PhD in Physics and the idea of my startup (which is meanwhile running quite well) is in the area of my profession. I enrolled to learn how to convince investors to invest in my vision.
I was asked to leave the course without reward of the fees at almost the beginning after grading 3 lecturers, quite low. Next meeting these lecturers were nominated to examine me and even before they started to ask questions other participants saw on line that they decided to ask me to leave,
As stated earlier my startup is doing well, and not because of FI.
I think you should think if it worthwhile for you to enroll in such a course.