You're the only person I've heard of complaining about his work or prices. You are absolutely entitled to share your experience here.
Mine and others was certainly different. I used John's interior products based on other members purchases from other vendors. A seat splitting in 3 years means it's made of sub-grade material. My experience with Quiet Ride was terrible. Stitching that came apart, wasn't straight and holes in the material from earlier attempts.
I valued his wife's input on color choices, but in the end chose what I wanted. Not what someone else wanted in my truck.
He can make a one piece headliner, it would be cost prohibitive to ship it.
I hope you don't mind replacing your interior in 3 or 4 years.