I wouldn't necessarily call them generic, rather insubstantial (though, admittedly, I have a large chunk of their material and enjoy, but hardly ever, listen to it). Strength & Honour is a good album. The ...Of The Night EP I enjoy too, as well as the split with Clandestine Blaze. Black Katharsis and Opferblut are pretty boring. Carelian Satanist Madness is better than those, but not their best either.
However, you could do without them, really. I don't really know why I have so much from them. Maybe I'll sell some of it to you if you're interested. I have everything that I mentioned except CSM, but I intend to keep at least S&H.
Edit: WHAT, Sargeist, Horna, and CB better? The only one of those that isn't complete shit is CB, and at that only a bit of what they've done (namely the split with DSO) is really anything worth mentioning. I wouldn't really go with the "Darkthrone worship" tag either, but whatever.