Just adding a data point. Being purposefully vague as I am fairly easy to dox, to the point that I think like 5 of you know who I actually am IRL, and I don't want anyone getting in trouble.

A [unspecified colleague] in an [unspecified jurisdiction] said his or her agency gave a few officers Shadow Systems to pilot test them to see if it was worth switching the whole agency.

Long and short of it, the test users are pretty vocally unhappy with the reliability and the next issue pistol will be one of the newer Glock MOS models (likely 45 or 47). They are currently on Gen 3 or Gen 4 17s, I think Gen 4, which have been unremarkable but reliable (which is like...what you want, in my opinion, for that role).

I think they made the right call.