I have listened to all their discs, and strangely enough, the first one left me perplexed, but I can't remember it anymore. I didn't really like the third one. Anyway, I only have the second, and I was so foolish to buy it on vinyl. So I'm getting this one on vinyl too, to keep it tidy. But the question is (was): have you had a chance to listen to IV? Is it worth it?