Yeah the fact you can change the gears, adjust for tire size, and change the shift points for wide open throttle is really nice and easy to use. Of course their tune is on there for regular gas or premium. This is a very easy to use tuner. If it only offered on the max energy 1/4 mile time, 0-60 time, and other features like that would make it even better. But for increased power and gas mileage and the ability to do what I previously mentioned is a great value. Looks like I'm gonna end up increasing my hwy mpgs +4 or 5 and city +2 or 3 on my 2012 1500.