I have a 2012 FX4, Tuxedo Black, Mod's, Locking Gas Cap, with about 400 miles on it. I'm very impressed with the vehicle.
Took it up to Central City in the mountains, with 130 miles on it, & averaged 17.7 M.P.G. i didn't go over 70mph very much. The power is unbelievable. I had a 2007 FX4 with the 5.4 which was a great engine lots of power, but the Ecoboost is just in a class of it's own.
R.