Their first 3 albums,Execution(1985),La Terreur(1986) and Suprematie(1987) are excellent speed metal sung in french, very well played, and with a unique old school charm; they signed to Noise Records for their 4th album, and were asked to sing in english; the result,Weird Visions(1990), is a good album, but nowhere near the level of the first 3 albums. I didn't sold well enough, and the band broke up....then came back 7 years later.
Nowadays, the band still plays some shows, mostly in France; i saw them twice in the last 5 years and the shows were great fun.
By the way, i don't think that they sound like Metallica or Exodus at all. They're much more melodic, traditional metal, even if they're pretty aggressive.