After receiving them, I compared them to several of the same brand and several from other brands. All brands are very weak. My Trijicon SG-01 that are 16 years old were still brighter than all the new ones. Being as weak as they are leaves a wide margin between the day sights and night sights. This essentially leaves you with a very loose aiming set up at dusk, and is very pathetic. I use my pistol at my job and have gun fire within 2-3 blocks almost every day/night. I emailed Trijicon when I received them and still have had no response. Due to an almost complete lack of communication from all parties, I decided to keep them, but I feel very cheated, though the day sights are much better than my old ones.
Pros: metal, lifetime warranty
Cons: Very dimly lit as most brands are now.
This review was written in the old system and had content requirements that are different than reviews written today.