These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Epic Riff: A lot of them, especially in Strapping Young Lad songs. "The New Black" and "Force Fed" are great examples. Amongst his solo work, "Kingdom" is a standout example.
Hell Is That Noise: the Alien album's last song is a twelve-minute endurance test of how much electronic sounding noise and guitar feedback you can take. It's completely unsettling due to its very grinding and schizophrenic sounding last three minutes. (It also has a repeated, and rather unsettling, Morse code phrase underneath most of it).
Possibly "Relentless", "Oh My Fucking God", "Rape Song" and "Shitstorm" for Strapping Young Lad.
Strapping Young Lad started as the giant middle finger, and then suddenly there were people saying "Yeah! Tell us we're assholes!"
Perhaps more horrifyingly, Word of God indicates that Devin is dissatisfied with "Rape Song" because apparently some people misinterpreted it as a pro-rape song (with lyrics like "Rape is just cause for murdering/Waste life/Die bastard die bastard burn" one assumes that some people didn't actually bother reading them). Of course, this is far from the only time this has happened in rock history; Nirvana and Husker Du had the same problems with "Polly" and "Diane" respectively.
So Okay, It's Average: Physicist, upon release, was pegged as okay but undoubtedly Dev's weakest album to that point (arguably, it still is). He immediately wrote and recorded Terria, usually considered one of his best and most personal works.
Regarding instead Strapping Young Lad, the Self-Titled Album had a reception similar to: "it's actually good, but ultimately forgettable.". After that, there comes Alien, widely regarded as Devin's own Magnum Opus.
In Omnidimentional Creator: Modular forms and elliptic curves! Infinite phi revolving around infinite parallels, fractals of infinite reality, each cascading, gliding in an infinite wheel! Tell me the true nature of my reality!
In Messages from Ziltoid: Reborn, Acknowledging the past of me that was lost. I have repressed too many years! My utopia was within my grasp! Doomed in absentia! Left to be sentenced! Still rising to cherish all the things I have left.
In A Ziltoidian Rapture: Tell me, are you going to finish all that yourself? The knot backwards, he put his jaws upon his beard They make laments upon the wonderous truths Ow! Ow! Ow! Grab me your hand and pluck The branch lit off the great thorn. And the true crime Why dost thou mock me? What's to be?