Some could argue that taking several weeks to revise a tune does talk about his workmanship...I've had my Tork tune for almost a year now and it still works perfectly. It outperforms the other tune I had and is smoother and glitch-free. John needed only one shot to make it perfect, I can't say the same for before I switched over, both in terms of number of tries and getting it perfect. His biggest problem is his tendency to offend people, not his ability to make quality products. The springs was sheer bad luck due to supplier issues and not representative of his workmanship.
AR’s service has been pretty good and I will keep buying from them.
John can be offensive, defensive, and just off-putting with huge wait times for simple revisions. He needs to figure out some major aspects of his business.
The tunes when working properly are pretty good. Sometimes some cars are trickier to tune too.