Lol, it was competitive in its time,
True that, & I don't have one nor a dog in the fight, but I make parts for them all & deal with several major bulk / volume engine rebuilders.
The 6.7 Cummins is the class of the market &, surprisingly, I've gotten a lot of good reports on the 6.7 Ford, not only from the regular rebuilders but also from the some that deal with the high performance market.
MM