Have dealt with Vit many times and never had a regret. People seem to forget that he is a busy guy and has a priority tune option for a reason! Even with the priority tune you get more of a tune than almost any dyno tune out there. Really takes his time making it perfect all around. I had my car tuned by a "reputable" "famous" tuner and had nothing but problems. With Vit's help and tune my car runs better than i could have ever imagined. Never ever looked back at other tuning options and have suggested him to many many friends all of which who were very happy.