I personally think the course material is excellent and many of the tutors are world renowned. As it is an online course, it is very much self driven. It is not enough to walk through the course material and attend the webinars, they expect the candidate to be do a lot, lot more outside of this. There is no hand holding, they expect you to put in the work. Due to the international nature of the course, group work can be challenging due to time zones and others personal/ work commitments. I think ultimately it is useful to list out one's motivations, constraints and what one actually wants to achieve and go from there. This course brings together military history, strategic studies, security studies and international relations; it is part of the UK Defence Academy which has affiliations with the UK Ministry of Defence. They're a lot of military personnel, diplomats, NGO folk who do this course; many have significant work experience.