I will be starting my 5th tune with this guy soon. His knowledge of various platforms and his experience tuning different platforms has this gentleman light years ahead of all tuners. The whole experience doing an E-Tune is pretty fun actually. You really get to see your car go from what it was to what it should be. I'm going to give my overall experience an A+. If any of my vehicles can be tuned he will be the one tuning them. A+ A+ A+