You can only get but so much out of these little turbos, so if you're sticking wih the stock turbo, then there may not be much of a difference between tuners. So that being said, if tuner A and tuner B are offering the same service, then the deciding factor should be price. My first go around I dealt with Adam tune+. My tuning experience was pretty good and my car felt good. I don't have anything else to compare it to, so I don't know how good of a tune I got in comparison to other tuners. What got me was the lifetime tunes. I upgraded my FiST in stages like most of us do, so it was convenient tongonwih Adam. Whenever I added a part, I would do a data log and email it and I would have a new revision usually within a day. If you're sure that you are not going to be adding more parts down the road, this may not appeal to you, so go with whom you like. My current tuner is not active on this forum, so most won't know who he is. When I'm done tuning my Cyborg, I will post a build thread with dyno sheets and let him be known to all. So far the process has been great and I'm happy with my decision to go with him.