I remember I saw Suffocation in 2004 with Morbid Angel and Satyricon.
I knew very little about extreme metal at the time (I was raised on the orthodox 80s metal but nothing more until I got to college). I went there to see Morbid Angel. Suffocation stole the show, and has continued to do so every single time I've seen them since then (which is a lot, but not quite as many times as Litany). They're total pros.