I'm not arguing that this will go down in history as a great engine overall, but the overzealous hyperbole is unwarranted and unbalanced.
They are not good.....at all. I have been at my dealer for 13yrs. We have changed 1 6.7, and that was for an oil leak/porous block. We have probably replaced 30+ EcoBooms. That said, the newer ones have been fine, no replacements.......but we sold very few really.