I cannot believe that there are people who criticise this book based on the paper. On the contrary: It is abolutely perfect. Instead, I HATE, with a passion, the glossy paper used for example in the Marvel Masterworks series. It is totally fake, and spoils the effect. These classic comics were not made for glossy paper. Suffice it to say that I would not have bought this, if it had glossy paper.
In fact, the paper here could not be better. Not glossy, not too white, but good quality, so that lines are clear and colours come out fine.
Enough about the paper: The content itself is great too, and well put together. I really like the idea of reprinting each of the issues featuring Fourth World characters in the order they were published. Jack Kirby, it goes without saying, was a master, so it's well worth reading -- and, especially, looking at. That's not to say that the storytelling is without flaws -- while Kirby is clearly full of ideas, he lacks the structure that Stan Lee brought to their earlier collaboration (to use a music analogy, this is like Syd Barrett's solo albums. Worth buying (if you're into his stuff), great in their own way, inventive, but just not as good as when he was with Pink Floyd). Some of the ideas, are a little misguided (e.g. The Black Racer, an obvious copy of the Silver Surfer, except that a guy racing through space on a surf board may be silly, but is also cool. Whereas a guy in space on skis is just ... well ... silly. However, 25 years on, 'silly' becomes fun again...).
The Fourth World does not hold a candle to Stan & Jack's Fantastic Four run. But that's comparing with, arguably, the best that the super-hero genre produced, and the Fourth World is still better than 95% of the rest.
All in all, as good as a reprint collection can be!