I had a laser on my .45 and I took it off. It was more of a
distraction than a help.
I've seen a few lasers almost being used at the range. It's indoors,
so they're very easy to spot. The scenario has always been the same:
The laser hits the target, bounces all around and then goes out, never
to return. I think the user just gets embarrassed at how much movement
is showing up with the laser.