So after my band members have used these units for around 10 months, the metal around the xlr connector started to warp. It’s a really unfortunate design flaw which is due to the way the shell of the unit opens up to access the battery compartment.
This is also taking in mind that we mostly used them at rehearsals, not really gigging. They were used as intended, strapped on the belt. So no heavy usage really, and the metal is warped.
Otherwise functionality is good. Can go stereo or mono. Tip for some people: xlr can carry an unbalanced stereo signal. So if your mixer can pump out a signal that is hot enough, I would advise the passive beltpack instead, like the Behringer pm1. None of this is happening on my pm1 yet, even though it was used as long as the p2.