I had this shield for more than a year and had no issues at all. I loved it.
I just took a point blank deflected wrist shot right off the middle of it (hit nose area).
The impact did push the shield into my face and cut my upper lip right through, but had I not had the shield I would have had a shattered nose. I also think I did not have it screwed in all the way, so the cut is probably my fault.
As for the protection, I could not be more pleased. I had taken a few sticks off it and it had some scuffing, but this was the first puck. Other than the scuffs from sticks, this shield held up better than any other one I owned. I cannot stress how pleased I am at how well it took the impact from a puck.