I just finished up with 91, e50 and tcm tunes. There's probably nothing that can be said about this guy and his work that hasn't already been said.
My story:
If I hadn't gone with his tune, I would have waited longer to change my spark plugs, which then led me to discovering a valve cover crack. He told me its an easy fix, he was correct, and I like to think this saved some engine life just from that alone.
Every morning there was a new update for me to flash, and each pass seemed smoother than the previous.
Shifts are night and day different with the transmission tune, and if that were the only difference then it would still feel like a brand new truck.
Aside from the goosetunes, my truck doesnt have any mods. On the 91 tune it wakes up a noticeable amount, but on e50 it's truly hard to believe that it's stock, that it weighs 6k lbs, and that Ford doesn't have these running like this brand new from the dealerships.
Everyone with a raptor should be doing this!