an excellent system if you want to spend $300. field serviceable halls sensor is a huge advantage. Halls going out is the most common point of failure for airhead electronic ignitions.
one of, if not the best alternative is a Beancan with points. find em for $35-$155 range, but they are getting harder to find. then add $65 for Dyna high performance 3 ohm coil.
found mine for $35 off ebay from someone that listed it as parts. since beancan with points are just about bombproof. buyitnow and it was mine. with green Dyna coil = $100 total cost for me to convert 81 R80G/S away from prone to failure OEM airhead electronic ignitions.