Just wrapping up my etune with Dave, too. My car was a nightmare (to me at least) with bad parts causing boost leaks, killed my turbo in the process due to bad oiling (Dave got me an improved oil feed with filter) and then a coil failure during my tune process. Dave was always helpful and fast with revisions. He waited on my logs more than I waited on him for sure!
The car is way faster now, runs great, and I feel I got far more than I paid for.
Thanks Dave!