I know a lot of people like smooth jazz, and for some it's the only jazz they will listen to or even try, but to me, it's elevator music. The jazz pianist Bobby Lyle made a double CD a few years back called Straight and Smooth: one CD is straight-ahead and the other is smooth. As much as I enjoy Bobby, I could not tolerate the smooth CD.
An article the Onion published last year, "No One Sets Out to Be a Smooth Jazz Musician," has been making the rounds again. It's a fun read if you're not a smooth jazz fan (or even if you are).
Image from the Beavis Blog.