So far working with XRT as been extremely fun every little thing he dials in changes the car. The power and transmission feel is dramatic over previous tune. The car feels much more refined the power comes in earlier and just keeps pushing! Since the second day of logging the car to me, and those who know me will testify that i am very sensitive to my car.. the car to me feels like I went out and bought a completely different car. I was nervous at first to beat on the car because of mental blocks i created over time on a bad tune, but lately i sad F-it and i have been driving like ken block stole it and is smooth as can be. no rough idle after spirited driving , no oil burning , no funny ticks from abuse. The car is much more able to put my mods to work now. Its nice to finally feel the difference my investement has made and i am looking forward to one day becoming a tuner myself.