Most people in Finland should know them. I would say it is the fact that vast majority of "old farts" of Finnish noise & PE are big fans (Grunt, Pain Nail, Bizarre Uproar, etc etc).
Huge element of band is the lyrics. I would say that it is crucial to know the absurdity what band sings to fully appreciate what it is really about. Classic time really is the 7"s, but band hardly did anything bad. Perhaps the sort of re-union tape that came out couple years ago was no longer the same. Being done with so much more "normal" sound quality, songs no longer had the demented sonic element, despite lyrics/music itself was ok.