I just got mine on saturday, i really haven't had a chance to play with it yet but so far its pretty cool. You have to enter some data on your car for it to be accurate, i did a quick run on it this morning on my way to work, i did 0-60 in 6sec and 13.82 in the 1/4 but i hadn't entered all my dat on the car and never adjusted my rpms to the gtech like i was supposed to but when i get off work tommorrow i'll set everything right and take it for another spin:burnout: