I think it's great. I have an FFR Cobra roadster and my 545 sport is "almost" as much fun to drive. Being serious - it gives you great steering response at low speeds without being twitchy at high speeds. The two systems on my car that truly make the car what it is are the active steering and active suspension.
545ia Sport, Titanium Silver, Grey, Nav., Cold Weather, folding seats, 19" Hartge Classics w/BS Pole SO3s, Bluetooth