Imagine you could mash together Napalm Death, (avant-garde jazzmen) Albert Ayler and Ornette Coleman, Mr. Bungle, and John Zorn. Add some blood and some candy for extra taste, and you'll get an idea of what Psyopus seems to be going for.
Anyone who dismisses this as random noise has either not listened carefully enough, or is just plain ignorant. On first listen alone I have detected enough structure here to make the "random" accusation completely baseless. I'm sure that further listens will reveal more of their (admittedly wacky) compositional patterns. Read some interviews by guitarist Chris Arp. "Every 16th note has been scrutinized."
Some songs interject spoken words, which make the whole experience that much more disturbing.
Many people, perhaps the vast majority, will not get Psyopus. That's ok.
Another reviewer here even claimed (in the comments) that no metalhead could ever like this band. News flash: I'm a metalhead. Who are some of my favorites? Iron Maiden, Black Sabbath, Judas Priest, (old) Metallica, Slayer, Cannibal Corpse, Arch Enemy...John Coltrane, Jaco Pastorius, Tori Amos, Cachao, James Brown...I could go on, but you get the idea. I'm hardly a closed-minded "scenester." I grew up in the '80's, and I tend to favor music from my formative years. Psyopus is a wonderful exception to that. They have earned a place among my favorite all-time bands already. And, trust me, I'm pretty effin' jaded.
If you're brave enough, and open-minded enough, and you're tired of the "new metal," metalcore crap, Psyopus might just be what you need.