I've enjoyed the "Delicate Sound of Thunder" (DSOT) ever since it came out.  The music is quite spectacular and most songs were performed with unusual passion (especially the sets with the saxaphone player and the  backup girls in `The Great Gig in the Sky').  What I found distracting was  the way it was filmed.  There were far too many slow-motion shots and I got  sick of the camera focusing on the fans' reactions.  That's where "Pulse"  is superior -- the camera work is seamless and focused on the light show  and the group, just as I did when I saw the live concert.  Make no mistake,  DSOT should be high on your list, and absolutely belongs in your library.  I watch "Pulse" for a true concert experience, and DSOT for the inspiring  performances.  Between 1 and 10, DSOT gets a solid 8.