I voted decent. I found some of his humor a bit funny, but as for sound goes it's just mediocre. I was also a bit disappointed by the lyrics because I keep hearing how this album, in terms of lyrical content, is better than his previous ones (which means his other ones must be terrible - but it's not my position to judge). I don't mean to sound elitist, but I never understood why Eminem is considered so great. I know so many other hip hop artists who are more diverse in sound and more complex in lyrics. He's a pretty funny guy when he wants to, though. I also noticed that he and Genesis P-Orridge (before he went through his changes) look somewhat similar.
(P-Orridge is the guy second-to-left)