He's amazing. Loads of stuff out there, all of it hard to come by. lost sounds, final solutions, the reatards, angry angles, the list goes on. Wikepedia has got a great history/discography. He hasn't played here. He played in England a month or two ago. The live stuff I've heard is stunning. I would be happy with 15 minutes, which is how long he usually plays.
I'm not mad about the matador stuff he's released recently. But blood visions and his first four or five 7"s are class.