 I bought a month ago, 3.5 L twin turbo Ecoboost engine is a beast.  We bought with alot of dealer incentives, and walked out with almost 12k in discounts.  I am inpressed so far and will come back and write a longevity review when I have put her through the tests and trials of real life.  I only have 800 miles now, so not a super true review of longevity.  I will return in a couple years to give an update.