Wolf and steel ammo in general is fine, unless you have some finicky gun that can't run it. I've never had a problem with Wolf in a Glock and I have shot many many cases of Wolf through Glocks.
The only bad things I can say is I've seen claims that some rifles ie Knights, won't run on wolf and I have heard claims that with AR15s brass ammo may not fire reliably after extensive use of Wolf without a cleaning. Personally I have not seen that based on my experience, but I've heard it from reputable people who say they've had problems.
Most criticism of Wolf is from inexperienced shooters or people who haven't shot it. You used to see "I wouldn't put 87 octane in my Porsche" on the internet and then see guys shooting Wolf through registered machineguns that would these days cost as much as a porsche.
It's inexpensive blasting ammo and not as accurate as higher quality and more expensive ammo.
I did wear out an extractor on a Glock over many many cases of Wolf. I don't know how much longer it would have lasted with brass.
Now a days Russian/east european steel ammo doesn't seem to be as common. If you have access to it cheap, I'd grab it. I'd certainly buy wolf over US commercially reloaded ammo, which is probably a cost competitor. Often that stuff is junk. Probably most inexpensive brass ammo is better than Wolf, but I don't know, I haven't shot much pistol ammo lately and I don't know what ammo from places like Bosnia or where ever is like