I've had my 2015 2wd crew cab ecodiesel since Jan 2015. It now has 21000 miles and besides a DEF related code that turned out to be a short circuit, there have been no issues. We recently logged 2982 miles on a trip from Georgia to New Hampshire/New York and back. Timing was perfect with mild weather and peak leaf color. Mileage has steadily improved with 31.2 mpg for this trip and it used 3 gallons of DEF. My two complaints are one, the crappy Goodyear tires were shot at 20000 miles and have since been replaced with Michelins. What a difference. The second is as a tall person it is still difficult to get into the ideal driving position partially because the brake pedal is too far toward the driver. I plan to remedy that soon.
Bob
Bob