I have two 44's, and at this point, between the two, Im halfway or so through my third case (12.5K) of Blazers, plus a number of bricks and boxes of a couple of other brands (Aquila, three or four different other CCI versions, Winchester) as well.
I initially only had three stoppages when I first got the guns, and two of those were 25+ year old Winchester Super X related. The other, a fail to fire, dead primer in one Blazer. That was also the only Blazer round I had any trouble with, in almost three cases too.
The only other issue I had ammo wise, was some old Federal Target Match ammo I had around, that didnt want to cycle the gun. This ammo never functioned in any of the other 22 autos I had either, so Im not faulting the Glock here.
I replaced the factory sights with three dot (9mm) Meprolight night sights, which are what I have on all my other Glocks, and they shoot POA/POI.
Right now, I have 11 mags, and all have been fine and work well.
All in all, they are fun guns. If youre not a Glock fan, then you probably wont like them, as they too are Glocks. If you are a Glock fan, youll feel right at home.