Used this to upgrade my Squier J Mascis Jazzmaster wiring, considering the stock was all over the place, and I wanted the experience of doing it for myself for the first time.
I'm not sure if it changes the sound so much, but this wiring is easy to deal with, and it gave me a really nice feeling of seeing everything so uniform inside my guitar, with that vintage vibe of cloth covered electronics. Still used it to redo my wife's Fender Mustang wiring, and it simply works.
Basically, it's wire. If you feel like it, go for it, as I did. It's not expensive and works great.