By all means get one. I have a custom made bracket, for a Scotts, and mines been on a long time. I dont believe the bracket I have is available anymore. It was expensive, and a huge pain in the add to obtain. Still, it was worth the effort. People think its just for headshake and thats only about 25% correct. Although it does deal with that, its valuable for everything else.
The aftermarket dampers have a huge range of adjustment. Not lime the stock dampers most get to deal with. You have settings that are basically nothing, all the way up to "VERY hard to turn bars." If you get on a freeway with a high setting its a product that will sell itself in about 10 seconds. You can make this light sportbike track like a GoldWing. Rough and abraded surfaces now feel like brand new pavement.
2012 Ninja 1000