This prewired harness it really amazed me by its quality. It made my cheap guitar sound 10x better due its eletronics, yes... it wasnt the pickups.
I highly recommend it. The guitar became alive, very dynamic, great note separation, much more harmonics of the wood came out.
The only issue I´ve been having was that there is one of the caps that touches the wood and I had to drill a small hole on the wood to make it fit. Plus, the pots have huge shafts, so only original fender tele/bass knobs will fit, so I had to order new knobs, which are a bit on the expensive side from fender as you know.