ABS on bikes is amazing. I have had two bikes with ABS and would not buy another road bike without it.
When a car stops in front of you when you are not expecting it in heavy traffic on a wet slippery road, ABS saves you from going down due to too much sudden application of front brake.
Those that say they ride well enough to not need it are just fooling themselves.
As to claims it effects the "feel" of the brakes - that's BS too.
