The second best feature of the Scarred Lands was, as it was in Planescape, was the incorporation of the alignment into the cosmic setup of the world. Rather than being a dumb 9th grader's idea of what morals and ethics might be, instead, alignment became the embodied will of cosmic entities - the gods, in Ghelspad.
The best feature, of course, is that Ghelsad desperately needs heroes exactly of the sort D&D is set up to deliver. No matter where you go, the cosmic conflicts of the Scarred Lands cause suffering and injustice, which heavily armored magical superheroes can repair. This book is a comprehensive look at Ghelspad as an adventure setting, combining exploratory culture and ancient treasures. It's everything you want D&D to be.