I haven't used any of their shotshell primers but I have reloaded some .44 mag with their large pistol primers.
I was kinda afraid of them at first but so far have been very impressed with their appearance and performance. I was given a thousand for helping some dudes after a gun show hump some of their stuff to the trailer. I really like the brass color of the primer in the handload.
They are clearly marked "non-corrosive".