it will also break after some time, i cant say anything else because they will delete my post.
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.