You may not hear it often, but you do hear it.
I had them on two carry guns (Correction, 3 guns). I now own same or close versions of those same guns, sans lasers (442 and MK9). (Correction, I don't currently have an SP101.)
Gave one to my parents (442), sold one to a friend (PM9), sold one to a co-worker (SP101).
I understand the potential advantages to them; I also know from practicing side by side that in most conditions, I am faster without the laser.