This is a lot of fun, but also very, very weird. Cory Goodfellow's two stories in particular were baffling and bonkers. I confess I did buy this book because as a Neal Asher fan, I NEEDED to know more about the Gabbleduck. As I read it, I developed an appreciation for the genre and the liberties people take to make it their own. The Kaiju genre is largely cheesy, in the style of the giant monster movies I grew up loving, but a lot of fun. I particularly enjoyed "The Lighthouse Keeper of Kurohaka Island," "Postcards From Monster Island," "The Eyes of Erebus (this one was grim in the style of total annihilation apocalyptic writing)," "Running," "The Black Orophant," and "The Unlawful Priest of Todesfall." It was so interesting to see how the authors turned the genre on its head. Of course, my favorite was "Softly Spoke the Gabbleduck," by Neal Asher.
If you don't mind cheesiness, weirdness, and the occasional bleak outlook, I recommend this as an amusing distraction. If you dislike the strangeness of the Kaiju genre or any of the giant monster films, don't bother. A lot of the stories were amateurish and I didn't particularly like some of them, but I found the instances of dislike were pretty limited. Still, if you're a serious sci-fi fan and don't like the wackier stuff, I'd leave this one be.