I was wondering how well any of the modules did metal tones. I was going to eventually buy one for a studio amp since they're so damn flexible. I know Michael Wagner uses one (actually two) all the time.
I haven't used one, but know it's used on the newest Disturbed album. I also believe Jason said he tracked the new Kataklysm album with one, but I don't remember which preamp module he said he used. So yeah, I'd say it can do metal tones - just depends on the modules you use with it.