I have a Kimber Custom Covert II with CT built into the grips.
This gun also has tritium irons.
I'm an iron guy at heart but in my aging years I find it harder and harder to acquire the irons - even with the tritium...
During the day (when I can see) I am a fan of the irons, at night when I can't see, I really like the Crimson Trace.
Here is a picture taken in darkness except for the 'puter and a small light behind me and then a timed flash from my camera.
For this pic the gun is empty and the magazine is in my bedroom.
The red laser dot at night is VERY visible and the iron sights that I can't see anyway don't matter.
The laser sight is useless during the day, but I don't need it during the day....
For the longest time I poo pooed laser sights - but that was when I was young and still had good eye sight. Now I can say that I really like my CT grip sight.