I heard them several summers ago, and it was the worst concert I've attended in at least the past ten years. It was all fuzzy noise to me. During that span of time, I must have attended at least 250 concerts.
I have no idea what they sound like live now, but in the early 80's they were fantastic. Of course they were LOUD (they stopped playing in 1983 when Roger Miller developed tinnitus (wonder how that happened) and didnt reform until almost 20 years later) This EP contains arguably their best music.