I have the Hook set. I had them in a good 7 months with no issues, but I have only put 100~ games or so on my Luci since then. Some people have complained about air balls taking out lights, but so far so good no air balls or busted lights.

Absolutely not. Mine are a very mellow yellow. They are no brighter than the stock leds in the machine. Just as a comparison, I put an led kit in my Jack-Bot and I now sometimes have difficulty following the ball because of how bright they are. My Luci/bolts don't give me any of these issues.

Memphis777 has a point that I forgot about as well. I had a bad solder joint on 1 of 3 of my bolts as well and it broke during installation. It was replaced free and easily, but still worth noting.