See I differ wildly from that view - the vocals are my least favourite part, but any other vocal style just wouldn't work anyway. But the music is astounding - it's "metal" enough to keep the non-muso's happy, and it's "progressive" enough to keep the technical fans happy - and they just have the perfect balance between downright violent, and intericate and "educated" playing - if you follow what I mean...
From a drummers point of view (mine) then Chris Adler alone is worth listening to. The guy is one of the best drummers to hit the metal scene for ages - probably, IMO, the most exciting drummer since Mike Portnoy, Gene Hoglan, Raymond Herrera, or even way back to Dave Lombardo! The guitarists are VERY VERY good at what they do, and way better, both technically and musically, than 90% of the other "death/shouty/growly/speed" metal bands out there. To me, they are probably the best metal band to emerge in the last 10 years