I disagree a bit here - the adventure materials is indeed easy to convert, thats why I will plunder it probably. But the full game needs more work because of the very distinct species and magic systems. At least thats what it looked like to me on a first glance, admittedly I did not do a deep dive yet.A lot of the best material in those books is rules-agnostic, to be honest. It could be a breeze to use that stuff with your preferred system.