I like it & never had an issue with em tho a few have(I think loose/corroded ammeter terminals are the bulk of the prob) & I add a voltmeter to switched 12V. I would highly suggest doing the bulkhead parallel bypass which is running 2 wires straight thru, the two main in/out power wires instead of the 2 pairs of male/female brass terminals for those two circuits. add 4" inches of wire(s) on the backside of the bulkhead under the firewall with that mod so if you need to seperate the bulkhead halves at a later date you can pull the front half out/forward. On the rest of the bulkhead terminals use a small bristle brush on the male ones and a spare male one on the female ones (a new female one if needed is a NAPA 725145-99 cents). then spray clean the terminals with brake kleen & ask Radio shack for their recommendation on something on them to enhance conductivity/reduce corrosion. check terminal alignment with the bulkhead halves going together, dont want to force anything.