Just installed these on my MMr. The whole process took less about 30 minutes including app set-up. I think they are indeed a very impressive light system. I also now understand the issue with the pictures you see online vs in real life. There is a 3 dimensional aspect to this lighting system that is really not able to be expressed via a flat picture or video. The lighting is somewhat immersive when you are in front of the machine and engages you further with the gaming experience. Not sure about how it would look for other machines, but for my rather dark MMr, it is a very nice upgrade and I think worth the $$.
Scot: I do have one suggestion for a possible future upgrade. A 3rd mode set-up for ATTRACT only. I'd like to have the lights flashing in attract mode through the 7 different colors, then go to my selected GI color during an actual game, with the UV glow options used when the flashers are lit. Not sure how you could do that from a design/build perspective other than some wired link to the START button with a delay built-in. (Eg, after 60 minutes without pressing START, the ATTRACT mode kicks in and stays on until START is pressed, going then to the selected PLAY Lighting Mode.)