When they first came out I was a little bit of a naysayer - didn't want to believe my venerable S4RS had been outclassed.
Not too long ago I went over to Touring Sport in Greenburg, SC and swung a leg over one and really got to give it a very close look. Was offered a ride, but way too much traffic.
The seating position seemed way different - more up on it where you can see right down the forks seemed like. The pipes are humongus. It's an awesome motorcycle and I'd give my (fill in you favorite body part here), no, not that one, to have a SF. But of course it'd have to be an S and have the Termi kit.
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I'd already have one, but I don't have the 18 or so large $ and the change for the kit.
The RS is still a hell of a good bike and NOTHING looks better in my book.
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LA