Test rode one when I was looking at rockets, the tank hit me in the chest from a standing start in sports mode, scared the bejesus out of me.
Handling was great but I was told they were heavy on fuel and expensive to service.
Ended up with the roadster as a better alternative for comfortable cruising, better pillion seat and looks more like a muscle bike.
I would still have one for those weekends when the boys go out to play.