It's my understanding they'll be very reliable if supporting systems are well maintained (lubrication, cooling, and intake air). Another is valve adjustments. Compared to the 5th gen Wings, the 6th gen Wing will probably be much less forgiving to riders who poorly maintain their Wing. For example, fluids changes will be less forgiving. Another will be valve adjustments. Since most riders can tell the difference after having their 12 valves all adjusted the same, imagine having 24 of them all adjusted properly. Basically, maintenance cost will be considerably more. Valve adjustments on the new Wings is required twice as often and there are twice as many to check and adjust.

It is also my understanding that such systems are monitored by onboard monitoring systems.