I have done some research on it but have not done an install. From what I have seen, if installed properly, it is very reliable. There is actually a gentleman on the Neon forums who has designed a "grooved, channeled" pin to replace the solid one in the kit. It is supposed to allow better oiling to the spider gears for improved reliability. I have a good amount of experience working on cars but I would not attempt taking apart this electronically controlled Auto tranny. If I had a 5 speed, with the power I have now, I would probably install the Phantom Grip.
Unless you are using the car for some sort of racing (drag, autocross, street

) it is not necessary.
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Fully built HRC Turboed 2.4: Wiseco pistons, T2 rods, Port & Polished head (Bob Special) with oversize Stainless Steel valves, #14 Crane Cams, AF/X UDP, 3" custom downpipe, 3" hi flow exhaust
No balance shafts, Ported GT intake manifold, Bored Throttle Body, 30lb injectors, Water Injected