I have had my GTI for a few years now and was waiting till all my warranties had expired before going stage 1. I had always thought I would go the APR route but after reading reviews and seeing the ease of use and cost savings with the COBB system I decided to go this way instead.
I decided to purchase from MAPerformance because of any of the dealers that were offering an additional tune with the purchase of an accessport, theirs appeared to be the most balanced and consistent power throughout the rev range.
I received the unit quickly and with no fuss and while I waited the day or so for my additional free map I installed the most recent COBB high boost stage 1 map. To be honest I was a little "meh" on it and was worried that I had made a mistake. However, Once the MAPerformance map was delivered I experienced the grin factor that I had hoped for. Throttle response was much better and the power gains, (especially torque) when on boost, are very Very apparent.
GET THE ACCESSPORT! GET THE MAPerformance OTS TUNE! It really is that good and that easy...