I received this a little while back and just had some time this evening to install stumblor excellent mod. The instructions are well laid out and the install was pretty easy. No soldering as promised, just some wire routing and some tweaking to get the Mechagodzilla flasher oriented properly.
The WiFi connectivity and adjustability of this mod are really fun and add another dimension. I was a little concerned at first that the sign was too bright and visually dominating, but was very pleased to find that there's a Global Brightness adjustment on the Settings page that let me drop the LED output across the board to more appropriately "sit in" with the playfield lighting. I think if you had a Pinstadium setup or homebrew equivalent, the sign would have plenty of output to be able to keep up. Since mine is mostly stock from a lighting perspective, it was nice to dial it back a bit. Looking forward to playing with colors and patterns a bit, as I've only scratched the surface of the adjustability in this mod.
Thanks Davey!