2013 F-150 Ecoboost 3.5 problems

My son run one for his work. At 70k or so, it developed cam issues. The dealer did $3K worth of work, failed to follow the service bulletin, and decided to skip a few replacement parts. It now has the same issues again, the dealer admits to doing the work wrong, and says they will do nothing to correct the issue. Same dealer did the same work on another company truck. They failed to properly secure a timing gear and blew the motor up. They are replacing the engine at no charge.

Sounds like a fairly unreliable product and seriously incompetent factory service are far from uncommon.