I went to a Soilwork show around 2009-ish and I thought they were fine on stage. Nothing special, granted, but they weren't boring like Opeth. Chainheart Machine live was incredibly intense, especially the beginning where Speed screams "I am the sledgehammer messiah" and the drums kick in. The whole floor was shaking.
Honestly I just think Soilwork are a little on the bland side. They write really good music most of the time, but do they have many songs that really stand out to me, that I listen to year after year? Not really. I like most of the stuff from Predator's Portrait, Chainheart Machine and Natural Born Chaos. The rest of their discography is a bit of a blur to me.