I bought 2, 1 for Centaur , and 1 for BOP (but haven't installed it yet). I'm pleased with the results on Centaur, had a couple of issues with the ball getting trapped by the right drops, and it jumping when hitting the edge of the protector in the shooter lane, but didn't take much to correct both, and it looks good.
For me, they are great for when you have a game that needs playfield touchup, but just doesn't warrant the time and effort of a full clearcoat. I'm crossing my fingers that BAA will get the Capt Fantastic ones in soon, I've got a playfield just screaming for it!!