I find it's useful for getting control of a car with a soft street suspension. It's a nice (and inexpensive) option when you don't want to do the full suspension tuning, and it keeps the car from sloshing around like a yacht.
I don't know if it actually lets you carry speed in a corner any faster, but the control helps you to keep from losing time getting a hold of the suspension every time you go into or come out of a corner. That's the way it seems to me, but if somebody knows more specifics about this suspension, it would be interesting to know. 👍
