I have just been reading about this controller.. @hall90 this what one person said about it....
HOLDS A STEADY RACING LINE IN GRAN TURISMO 5
This game is perfect for: hardcore gamers
I first picked this up because of its compatibility with all racing games, not just good for GT5. After racing with it for 60 hours, the value is in the side by side racing pedals on the face, the placement allows one (1!) thumb to control both the acceleration and brakes. (Instead of left index finger and right index finger) This allows for the heel/toe technique of real life drifting, through corners, holding a solid racing line, and shaving time off my lap. This gains the advantage in online races on PSN. Right on!