I have rewired my board with SIS cables (this was my second kit), and can hear the difference in sound immediately. The cable and plugs are very high quality, however, making them up takes practice. There are lots of videos online that are helpful with this, but it can still be tricky. The genre core is prone to breaking when stripping the cable, and if it snaps in the plug it is very difficult to remove (top-tip, use a chopstick!).