From personal experience within the last two months I agree 100000%.
I accidentally bought a case at a gunshow in late November, thought I was getting something else, and will never buy another round. In fact I have about 750 rounds that I am about ready to trash. I will not use it and will not give it to a friend.
It is filthy and doesn't feed for $hit. It took me two hours to clean my AR15 after just 250 rounds. I took it out a week later and it was still dirty so I cleaned it again.
The last round from a magazine only feed once. This was tested with a 20rd converted by Bill Clinton to 10rd, a very high quality British 30rd and two 40rd mags. It jammed constantly.
At the shoot where we met, toward the end of the day, I loaded every mag I had and emptied them as fast as I could with So. African ammo and not a single hiccup. The accuracy wasn't affected either.
Took an hour for the barrel to cool.
The short answer to your question is that I will never shoot another round of Wolf ammo again.
Take care and stay safe!
Your problem is having bought a precision weapon.