The specs I saw were that the ecoboost makes 90% of it's power from 1500 rpm to about 5000.
That is pulling more like a deisel, without the hassles.
I towed a 5000 lb TT through some pretty good hills this weekend and it maintained 60 to 65 mph , up the hills at 1500 rpm with out even thinking about downshifting. With a 3:15 axle.
More horesepower than most small Ford V 8s, and 90% of it from just above idle.
Sure anybody who bought a V8 doesn't like it, after all, anything new sucks.
I wonder why the industry is calling it the "wave of the future" and there is now a 2.7 4 cyl ecoboost with 370 or 375 horsepower?
I also got 11.5 to 12.5 towing on two lanes in the hills.
I'm not 100% sure, but so far, I am pretty damn impressed.
http://www.f150hub.com/specs/ecoboost.html