[HawgRyder]

I like the old points and coil myself....easy to troubleshoot...can be fixed at 2:00AM on the side of the road...and the only tool you need is a screwdriver...and maybe a dollar bill to clean the oil off the points.
But...as to electronic units...all of them have pros and cons.
The more they do (emissions/curve/RPM limiter/etc) the more you have to go wrong.
With all systems, heat is the enemy...cool them...insulate them from voltage spikes...ground them VERY well....and keep the fins or covers clean so that heat can be dissapated.
The location can be very important too...try to keep them out of the hot air of the engine compartment if possible.
Even the cheapest units can last for years if you use some common sense to start with.
Bob