My buddy used to LOVE Mobile One for his Audi TT.
I think the guy was fairly knowledgeable and honest. However when my buddy bought a completely programmable ECU, the guy told him that tuning is "easy" and to "just drive around, you'll figure it out..."
So he did. Blank ECU with some kind of weird software to interact with it, with a "startup map" and an external boost controller, fresh motor and big turbo, ripping up and down Rt. 72 with 30psi boost. Popping, farting, misfiring, knocking.....
He managed to blow it up in a few days. He was convinced the guy was right, and he'd be able to "figure it out".... after a few days, he decided to drive out to my house for help, and the motor was already fucked.
In the end the guy at Mobile One wound up buying the car from him for pennies on the dollar, and my buddy went out and bought a Cayman instead. He never blamed Mobile One (I did! Know your customer!!! Don't hand over TUNING to a n00b...)
Anyways... that's my story about Mobile One.
On to another topic - anybody in the market for a low mile '17 GoRf DSG?
Husband of a coworker of mine is selling his.
https://www.facebook.com/marketplace/item/167053374013212/?ref=messenger_share
PM me if you're interested, I can put you in contact.