I think someone has actually discussed this in the past! As far as I know IC dungeons have been done plenty times successfully, personally I've never had the pleasure so I can't give first hand account but I've heard of them being done and going well from friends.
Now to something I'm more useful on, I think they're a very fun idea, I like the setting and atmosphere for most of the dungeons and personally I'd jump at the chance to do one eventually.
Now to something I'm more useful on, I think they're a very fun idea, I like the setting and atmosphere for most of the dungeons and personally I'd jump at the chance to do one eventually.