So now we know the origins of the Spacing Guild, The Great Houses, Prescience, The Bene Gesserit, Mentats and what i personally think is the most important concept, the feud between Atriedes and Harkonnen. Admitedly the later is a bit weak, i was expecting something a little more devious, especially with the Harkonnens reputation, But it seems that reputation is something they nutured over time whilst flogging whale fur in the back waters of the universe...
The Dune universe created by Frank H is still one of the most intriguing ever put to paper. I think it would be unfair to compare Brians work with that of his father in that the legend of Dune would be hard to beat. Brian has simply provided us with an insight into the organisatons and events that shaped that universe, and as someone who enjoys it I can't really complain. Except I thought that the Houses trilogy was better!
Looking forward to the planned sequel to Chapter House.