A top-/god-tier band for me. One of Earth's finest and word has it it's the same on Kobaïa as well!
Their 2001 DVD Theusz Hamtaahk - Trilogie Au Trianon was my introduction. Being a proper jump in at the deep end it took me some time to digest and appreciate. The intensity of the performance was downright frightening at first, but little by little I came upon its deeper layers of ecstatic bliss and otherworldly beauty. I believe it's the way Christian Vander has channeled his singular vision into the music for 50 years that sets them apart from all the others. That man is truly a force of nature!
I'm fortunate enough to have seen them live four times since 2013. If I were to single out the band's most amazing works, I'd go with Köhntarkösz, Ẁurdah Ïtah and De Futura.