I've gone from and ST to a Bandit, to a 2007 RT. The Suzuki revved out to 10,000RPM (power about the same as the ST), so at first the RT seemed to run out of breath awfully early. I just didn't jell with the bike quite right at first, even though I've always loved singles and twins. I loved the chassis, but wasn't so sure about the motor.
After a bit of time in the saddle, I not only didn't miss the long wind of power, but fell in love with the bike completely, including the motor. For me the whole package is in the sweet spot for the things you encounter traveling.
I've done 40 miles of dirt road on the RT with a few guys on V-Stroms and the motor's power characteristics (and frame geometry) shined like a diamond. I've put the bike on cruise when forced onto the interstates, and the bikes motor happy perked along with it's twin song, sweat free. I've gotten hard into some very tight twisties and the motor again shined like a diamond, easily doing things in general, a good bit better than some heavier, smoother engined, more powerful bikes, giving away nothing in that environment. Actually it shines in that environment. The spread of overall versatility and enjoyment is very wide with the bike.
Now days, if you were to offer me an straight up trade for even a brand new model of the more powerful, but heavier sport tourers out there, you'd hear nothing more back beyond a hearty belly laugh and a polite "no thank you." I miss nothing and feel I've gained much with the switch. A good blend of characteristics it is for me. I even don't mind the paint shaker acceleration (as characterized by Bones (Hi Bud)), it's a twin after all. As a twin it does have some vibration under hard acceleration, which for me is problem free, it's just the bike as it is. I think it's plenty smooth even for non twin lovers at other throttle settings, however YMMV.
Oh yeah, torque steer is a parlor trick at stop lights for giggles, otherwise it doesn't exist.
Another thing that fails to exist as far as I'm concerned, is any numbness from the front suspension. I've always been able to feel the traction at the front, and I always know if it is sliding at all. I can also feel rolling pebbles etc. as well. To me that's good suspension feedback. However, I don't always feel every bump though. To me that's not numbness, just good suspension. My DRZ also doesn't let you feel every bump when on road, what with long travel suspension and all. So I guess it's how you define lack of feedback (which I've read about a time or two in relation to BMW suspension). Again, YMMV, just how the bike seems to me after time in the saddle.