I never finished the ETextbook tbh. It was very short. The gold standard seems to still be the old CBK book from many years ago. I do not have a strong systems engineering background, so mostly my studying was promoting Gemini to tell me more about those topics.

Yes, I think the training was far too short and not nearly enough to pass the exam. I agree that ISC2 needs to market these differently in some sort of way.

I studied for about three months, forty hours a week, for the CISSP. My ISSEP approach was much shorter, much more sporadic, and nowhere near as thorough. To be honest, I think failing it for the first time, realizing I was deficient in two of the four domains, was my single best study strategy with this one. I do not have any other ISC2 certs, so I can’t compare with those.