Here's a few ways I've tried to describe it to other people:
"well, it's like NIN covering the Beatles, just in 7/4..."
"It's sorta like the 21st century, postmodern information-age version of "The Wall."
"Moore's voice is filtered out a bit and usually has a delay over the top, so it has this really "empty" quality to it... It sort of functions like a black hole at the center of a nebula, drawing all these pulsing electronica/metal beats around it and pulling them into its orbit... simply amazing."
My friend Laura, definately NOT a prog fan, summed it up simply as "this is really cool." Only CD I've played for her she's asked for a copy.
I can't see how anyone could NOT like this... buy it.