I've only heard good things about it, the only thing is that with the accesport is plug and play and no further tuning can be done. Every car is different so you might have more power than what's showing with their preset maps, and you can't do anything about it. The street tuner from cobb is more versatile, but more $$$. For the money is the best thing you can buy brand new, or you can try to find a used Utec or anything else.