Agree with all this. I was deadset against anything other than a V8 (had the Triton 5.4 and then the Coyote 5.0 in my previous F150s) for all the normal reasons (reliability, complexity, moar powr!!, etc) and then I drove the EcoBoost and put my foot to the floor. Whoa.
It's quicker than the V8s and it doesn't sound like it's about to rip itself apart the way the V8s do. I love the low grumble of the V8s when slowly accelerating or cruising, but when I floored the V8s to pass it always screamed like a banshee (and not in a good way). The EcoBoost is just smooth and once you get into the power curve it just keeps going!!
I still have buddies who drive V8 trucks that give me a hard time about having a V6...I just remind them that my "minivan" is faster and can tow more than their "real trucks".
Before anyone writes off the EcoBoost, do yourself a favor and go drive one. You don't even have to tell anyone...wear a hoodie and sunglasses and drive to another town where no one will recognize you. I bet you'll be glad you did. And if not, no harm no foul. But until you drive one, don't make up your mind.