I've posted my Review of Sandworms of Dune by Brian Herbert and Kevin J. Anderson on goodreads if you feel teh great urge to check it out.
And with that I'm done with my Dune retrospective. I thought it was a pretty good ending to the series, because I was able to see past the fact that it wasn't written in the style of the original author as so many people don't seem to be able to do. It brings a satisfying conclusion to a series that has its high points and its low points, but gave huge contributions to the science fiction genre along the way.