I'm fairly impressed with the sound from that engine as well. Not your usual thumper rattle. Though at low speed it does still sound like somebody chucked a bucket full of pennies into a clothes dryer. ;-P
I respect your preference, SlickRick, but I'm happy it's not too loud. That whole "loud pipes save lives" meme is fairly easily dismissed when you consider that the exhaust faces backwards, and people in cars generally can't hear you until they have been passed, at which point the sound is just needlessly annoying. I've even had people come up to me in campgrounds thanking me for how quiet the exhaust on my F800GS is. All things being equal, I prefer to make a good impression when dealing with non-riders. And I figure that relying on the sound of my engine to get a driver's attention is a good way to get myself killed. My default expectation is that drivers can't see me nor hear me, and I try to ride accordingly.