No not hard to adjust or mount, but they say if U use Gunscrubber etc.. they do recommend removing any Laser, since some cleaners can/will eat many types of plastic/polymer.
However they make a plastic safe gunscrubber but i would be cautious even with it.
Yrs. ago took Gunscrubber to a CZ-70, had taken grips off and then sprayed frame but some over-spray hit edge of grip and it started smoking/bubbling, fortunately was able to run under water and then using 0000 steel wool able to smooth grips edge and looked normal!
Saw picture of same gun/grip were melted beyond use with gunscrubber and dude had to buy new grips, but even Loctite will eat plastics!