So far I’m impressed. I have started switching the strobe lights from code3 over to sound off for all of my new work trucks. Main reason for the switch is the sales rep is easier to get in touch with. I like the silicone lenses sound off uses that are supposed to resist yellowing better than the hard plastic other companies useSound off makes good stuff. We run their products along with Whalen on our police cars, never have an issue with either brand.