This dubious company, supposedly based in Luxembourg, released numerous Krautrock albums without proper authorization or paying royalties, in effect producing bootlegs that somehow found their way into mainstream distribution.

Ned Raggett's review for AllMusic opens: "The debut Harmonia album is at once a product of their source bands and a fine new twist on them, resulting in music that captures what for many is the Krautrock ideal..." He adds, "...it's at once playful and murky, steady and mechanical, a supergroup of sorts who easily achieves and maintains such a seemingly overstated status by embracing a variety of approaches that work wonders.

"[5] Uncut named the album and its 1975 successor Deluxe as "among the best Krautrock had to offer, gentler than Can or Faust, but with their shimmering keyboards and mechanical rhythms, every bit as compelling.

[8] Artforum described the album as "a series of sonic vignettes in which the anarchic impulses of Kluster/Cluster were refined and channeled into controlled, Apollonian mechanics and repetitive electronic melodies with soft, synthetic textures.

"[4] Pitchfork stated that the group's debut "was a precise meeting of their constituent parts—Roedelius’ eerie beauty, Möbius’ sense of tension, Rother’s cool exploration—with each member contributing to the sound equally.