you did an excellent job integrating this to the inlane lighting. 
The concept seems to be working well.
The good thing about pinball owners that I've met, is that they are a smart and mechanically oriented group of people who are able to figure things out. So far all of the people who have these kits have been able to install them on a wide variety of games with basically no further input or assistance from me which is a big bonus.
Simple, fun, and accessible is what I've been aiming for.