While Zfg is probably the biggest name on this platform the reasons behind it are 1 great tunes, and 2 the length of time he has been doing them. Goosetuned uses the accessport which has only been out a few months for the ST but goose has made plenty of videos of the constant work he is doing in regards to developing his tunes, they just keep getting better and better. I would honestly say Goose and Zfg are both top tier as far as tuners go. Personally I like the accessport a lot better than the hp tuner. As I can monitor my gauges from it, vs having to use an app on my phone. I worked with several different tuners on various cars and my tuning experience with Goose was awesome, took less than a week start to finish. He was extremely responsive, and professional and I can’t recommend Goosetuned enough. Both tuners give you a great tune, so at the end of the day choose what device you like better.