Oh HELL yes.
I'll be honest, I've always thought Les Savy Fav's studio work was a mixed bag, ranging everywhere from kind of obnoxious to really goddam amazing. But their live performances are epic. A live CD won't really give you the full effect of getting hit in the face with an ice cold wet sponge while you're sweating your ass off on the dance floor and a half-naked fat man is putting on Peter Criss face paint on stage. But it's a step in the right direction.