Yet right now they seem to be having an issue with the 2.7L version in the new Broncos. And it appears specific to the Broncos and not in whatever other vehicles (Ranger, F150 etc.) that they've used that engine.
The other big 'complaint' on the F150 is the aluminum bodies. For me that was actually a selling point - knowing that in 10, 12, 15 years I'm not going to be looking at rotted out rockers, cab corners and box. I think the weight savings gained by using aluminum was partially used for adding sound deadening etc. I have a friend who is a huge German car fan, owns a 3 series and a Benz R-class (which is really a Chrysler). I've lent my truck to him a couple times and he's always commented on how quiet it is.