I enjoyed this book about a kids going it (almost) alone in the wake of a mysterious catastrophe.  I am a sucker for this genre and I do like the Swiss Family Robinson feel of these kids building a life for themselves in the Mountains.  The idea of the Chief, ruling through the concensus of the group rather than brute force or cunning, was a refreshing departure in such tales.  This is not a Mad Max, Lord of the Flies type of story so if that is your cup of tea, you may want to look elsewhere.  The book does not lack for action but there are long stretches where the folks are just busy trying to stay alive and build their community, so be prepared for this.  I for one would love to read a sequel to find out about Mike as a grownup.