This book was a very interesting read. I have mixed feelings about it because the slang and language was initially difficult to understand and the plot didn't seem to be going anywhere (which is appropriate for the type of story). However, the author made me care for the main character, which I could relate to. Unfortunately, all the bad things that happen would bring my mood down whenever I read the book (of course, my mood improved when I read some of the better chapters). It is a testament to the Mitchell's skill that he can do this to a reader.
In the end, I have to say I did enjoy most of it and can certainly see why the author has been praised for it.

For a full review, see my blog: strakul.blogspot.com/2013/09/book-review-black-swan-green-by-david.html#