I own at 19 Tracer GT. I got a chance to ride the 21 9GT at the IMS show a month or so ago. While the bikes are very similar, IMHO the suspension was a nice improvement. The fueling / throttle response was good, a little better than my 19. I also don't care for the dash. I much prefer the 19-20 dash. The screen and seat aren't great for me, but I don't expect any bike to a seat and screen that works for the masses. I accept that I will probably need a different seat and screen. The larger fuel tank and panniers is a nice improvement. The brakes could use an improvement, but perhaps they were seated properly at break-in. OH, and that QS, esp on downshifts, I love it.