It makes a difference once you get used to it. I can feel when it's working. Strange sensation the way it pulses but I've found that I can stay in the gas even though the rear of the car is wiggling from side to side. I had the car sideways at 95 at the last track day and didn't end up in the ocean or hospital. Now if I can only find the video from the Mustang I was passing at the time. I think you'll like it once you get used to it, obligated to get one or not.

Les