You are welcome!
Personally I did not listen very much of their work, especially early staff is quite industrial noise.
Artistic only? Yes and no! Because evrything is connected, they acted very politically in reality thru art form. They made mockery of post-titoist communist regime in ex YU, at the same time creating a virtual state, independent artistic "state" called Neue Slovenische Kunst (New Slovene Art), they even designed and issued NSK passports representing NSK "citizens".
They processed influences of Germanic/Wagnerian operetic art, political ideology of totalitarinism, industrial post-punk (Einsturzende Neubauten), theatrics on stage and phenomenology of pop music (they made covers/remakes of Beatles, Stones, Queen, Status Quo...)