I have the Truglo night sights on my home defense M&P 45 and they are very bright compared to Trijicon night sights, however that normally translates into a shorter life span. I have installed a bunch of the TFX sights for friends and customers and they have been very pleased with them. I have started installing Trijicon HD sights on all of my defensive handguns for 2 reasons. I am 60+ years old with the attendant degrading eyesight. The Trijicon HD (orange for me) sights have a larger front sight "dot" and a larger rear sight "notch" that allows wider light bars on either side of the front sight, which allows me to pickup my sight picture much faster. The larger sight window also allows for a marginally larger field of view for threat awareness. Secondly Trijicon offers a relatively unknown program to have your night sights "re-lamped" at a nominal charge. Trijicon's customer service has been extraordinary.