I wonder what we all did before WS stu ?
A bog standard system in good order, can be fully effective, as many millions of cars including cossies have been showing.
I think it is amazingly over priced, considering the cost of some aftermarket ecu's that do this as std, V4 for example.
Most of the issues can be rectified with regular maintenance, although the amps are a common failing on the std system, so the WS kit adds another.
tabetha