I always felt the turbo was a perfect fit for the needs of a diesel. Also diesel exhaust gas temp drops at idle, which if you let it idle a few minutes before shutdown it will not cook the
oil and the turbo will last a long time.
In the past, I didn't care for turbo quarks on gasoline engines for a daily driver. The torque was low at lower rpm and the turbo lag was very noticeable. The hot exhaust gas cooked the
oil after shutdown and shortened the turbos life.
I have to say that Ford has outdone themselves on the ecoboost. The small ecoboost engines are making more torque at lower rpm than the larger NA engines that they replace. Many of them are hitting peak torque around 2500 rpm or less.
I still have to say that I am hesitant to trust the long term reliability. My last four autos, I have driven 160K to 210K miles and kept them 10-18yrs. All Fords and none had anything go wrong other than tires, belts, brakes, and batteries. A couple other odds and ends, but nothing major.