I have chosen Vit Tune after the good reviews on the forums. The e-tune has taken over 3 months and finally my car with tuned NA engine is slower than when it was stock! Ridiculous timing and VTC maps and crazy rich mixture. Perhaps he is a good tuner for US market BUT not for European cars, IMHO.
Bad customer service and communication. Arrogant and conceited person. Not satisfied. No reply to my questions about it.:-/