I've been using Wolf Large Pistol, and Large Pistol Magnum for about 5 years now, with zero problems (I know, you're talking about Rifle primers). The Wolf seem to be a little harder to seat, but I figgered it was because they weren't nickel plated like other primers. I have had to remove "live" primers from brass and did it the same as I size/deprime fired brass, just a bit slower/easier.
I hadn't heard about the refunds, but I don't think I'd have taken advantage of their offer anyway.
BTW who are the "they" that claim Wolf primers are harder, Wolf? I rarely pay much attention to forum "experts" or gun shop gurus, and "they". If Wolf said their primers are harder then OK, they are harder