Today I finally had an opportunity to take my 2004 Spider equipped with F1 for a spirited drive. After putting on 50 miles I am completed enthralled with the F1. I found using the F1 requires interaction between myself and the car. The paddles are a blast to use and timing their use requires driver involvement and attention. Now it is possible the upgrades to the F1 make a difference but based what I have experienced there is no way I would consider a manual shift transmission again. Those considering F1, I say do not hesitate. They are definately the latest and best technology adding sunstantial enjoyment to the use of your car.