The structure is unusual in that it's essentially the journals of an omnipotent tyrant with a chokehold on the universe musing about the nature of man and the universe for 400 pages while being very light on plot; a big change from the other books in the series. I think it's a fertile concept to spend an entire book on and I find Frank's observations stimulating. He's crafted such a unique character; someone who can not only see into the future, but can access their entire genetic heritage and the memories of their ancestors. That makes for some very unique observations and I am here for it.
It's my (admittedly slim) hope that we'll someday get the Worm on screen. I have no idea what that movie would be like or if it would be any good, but it would certainly be ambitious.