The rest of the plane was really awful, noisey, vibration, smelly, no guts, slow, although it did use minute amounts of JetA1 and was far cheaper on fuel than a Lycoming. It was of course an aftermarket modification and so it couldn't be expected to be perfect but I hope Cessna are doing better than that.
That's what happens when you try the con of telling everyone that a 135 HP diesel can match a 160 HP avgas engine.
I see Continentals new CD 300 diesel engine is only 17% heavier (it's actually more like 20%) than it's avgas equivalent. That should be a real selling point.