100% serious. I love them for their first album and, to a lesser extent, their second album. Absolutely hated everything since that.
Random fact, I live in their hometown.
Yeah, Dance or Die was definitely not my thing at all, which is strange because it draws some very obvious inspirations from artists I like...but III was a lot better if you ask me. III really had to grow on me, however, and it took a while before it became enjoyable.
It should be noted that I know the guys, so my opinion is biased. And as always, they really shine in concert anyways, so that's where most of the fun is going to be.