"Monotonous" is unfortunately the feeling I have about Meshuggah too much of the time. I love the synthesis of so many interesting things at once that Meshuggah effectively pioneered (offkilter rhythms, syncronized instrumentation, super low tunings, clean and atmospheric ambient-ish sections, jazz influenced-guitar leads, all sort of a more evil one-upping of Cynic), but Meshuggah themselves don't hold my interest for that long typically, others took those ideas to more interesting places.
I'm spoiling something in a roulette writeup, but I saw The Dillinger Escape Plan live on Gigantour and I was not prepared for that insanity. Not at all.