I've had nothing but positive experiences with both of my atomic diffusers from GLA. I've had one in my mini-M for about 8 months now, and another in my 90G for about 4 months. No issues whatsoever. Obviously yours had some sort of defect, you handled it too roughly, or the working pressure was way too high.
cant comment on anything because my post will be removed, but i only had bad experience with it, 3 diffusers down the drain.
good luck to others