I don't even own a bike.
That being said, and as mentioned earlier, most TC systems are VERY nanny state, for obvious reasons, the OEM's and Aftermarket are "THINKING OF THE CHILDREN"
Without knowledge, a pace that can tax and exploit the benefits of the system and an understanding of what is required to truly exploit the bike's capabilities, electronic or otherwise, TC systems will inherently feel intrusive in areas where a less experienced rider will notice(straight line accel, ham-fist throttle application on lazy corner exits)
From this, many will feel that the TC is not beneficial, hence the "I TURN IT OFF!" claims.
This is unfortunately a poor decision as time spent with the technology reveals just how beneficial it can be, even for a novice.
I normally feel the need to disagree with shaman, on principle along because he owns his own bikes and I have to find seat time by the grace of kind benefactors,, but the Aprilia system is pretty damn good out of the box and probably the best OEM, I've spend time on BMW's, Honda's with the HRC kit config reversing the action of the CBR1000 ABS, the new Kawasaki ZX10 as well has just about every recent 600 and 1000 with a Bazzaz setup.
On a side note,, I don't really ride, I just come here to pick up chicks,, Anyone got Bibo's #?? his mom's been ditchin me!!