I haven't done that course, or any course like it.
I would ask:
Have these men done things that you aspire to?
Are these men people you aspire to be like?
What makes these men people that you should listen to?
What is important to you when it comes to being a man, husband, or father?
What would help you become more successful in whatever business you are in?
What would help you transition into a business you would enjoy or be proud of?
What are these men providing that will help improve any of the aforementioned questions?
How would this be better than alternatives, such as seeking counseling, building friendships with men you admire, hiring a personal trainer, or investing in some sort of businessy thing?
If you are primarily looking for a physical challenge or proving ground, how would this be better than participating in an "extreme" event, such as a long obstacle course race, a marathon, or a GoRuck event, or even compete in an MMA event, that would require a significant amount of time, training, and money to train for and complete?
If you are primarily looking for a way to improve your self as a man, what qualities do you find yourself lacking? How would this improve those? Are these people - who are largely successful former members of the military - modeling the type of man you want to be? What are alternatives that improve those qualities or provide you a better sense of "manliness?"
If you are primarily looking for a way to improve your self as a husband or father, are these men successful husbands and fathers? How can you tell? What do you think are failures or places for improvement for you as a husband or father and how will will this course contribute to improving them?
I want to be clear - I am not asking you to answer these questions on the forum or to me. But these are questions *I* would ask when evaluating whether something like this is worth the money or if it is a form of LARPing* in attempt to make up for not doing "hard core cool guy stuff" when you/I were younger.
*LARP: Live Action Role Play