I am not certain if you were referring to the entire book, or the short story.  There are two reviews for the book and one for the short story itself.  If you are looking for a critical review of the short story itself, it will be difficult to come by.  The story is hailed as a highlight into many themes including the Vietnam War, the Native American struggle, and now it is beginning to serve as a wonderful insight into PTSD.  On the darker side it also demonstrates the vulnerability of suicidal intentions. 

The book is also rather well reviewed with many of the stories containing overt and covert ties which bridge the work across generations.  The shared themes and excellent composition of the short stories makes it a difficult book to criticize. See the links below.