The link and comments do about cover it to my opinion.
One mention I would make is the emphesis on taking buddhism as the ultimate final thing in things of the conventional world.
Another words.....buddhism first in the consideration of things.
That may perhaps have been particular to a circumstance, but perhaps it was not, and other lamas may mention that.
One of those that were present did decline that as result....which is why I mention it.
If it was not just particular to our circumstance perhaps one could be prepared for that.
If it was then it would not apply.
"This order considers that progress can be achieved more rapidly during a single month of self-transformation through terrifying conditions in rough terrain and in "the abode of harmful forces" than through meditating for a period of three years in towns and monasteries"....Takpo Tashi Namgyal.