2 different worlds...
After getting my GTI flashed out it was like a whole new car. The torque increase is just insane. I loved it so much, 2 weeks later i bought the full stage 2+ kit. WELL WORTH THE BUY. Not to mention, you can SWITCH BETWEEN FUEL MODES!!!
First Time Tuner
It's only been a few weeks and I'm not a racer but the "bang for the buck" is unbelievable. There is no question that you will feel a difference immediately. I did this on a new vehicle and would do it again, no question (software tuning).