I never tried the LASR system, but I remember it being around for years. I ended up using the idryfrire pro target system in 2019, which has the option for IR/Red or Red/Green lasers.
I can still call my shot, and verify it, but I can also see if I am jerking the gun any, measure, total time splits, etc.
These kind of systems can be useful when used correctly, and treat it like live fire training even if it is dry just to prevent from getting lazy. Which I have caught myself at times being lazy and corrected it.