I had a GS500 for my first bike and absolutely loved it. It wasn't "gutless" by any stretch of the word. I wish the F model was out because I hated that my bike was so naked. After I got good at riding my bike and stopped dropping it, Roach and the rest of the SpeedWerks guys put on an aftermarket bodykit and paint job and did a little work to it and got me a few more hp. That bike was a blast. I would buy another one in a heartbeat...especially now that it comes with a bodykit. 
Laura
Laura