I came to this book the same way that others have, I'm sure. After reading the Silo series and Dust, I was hungry for more Howey. 
 This book is... ok. It really reminded me of a standard scifi story from the 1950s. The plot is fairly simplistic and the characters are not particularly well fleshed out. However it is totally unlike Silo (or Sand, for that matter), and fans of those books will probably find themselves let down as I was. 
 If you want to read a mildly interesting book about people surviving on an alien planet and discovering their true nature, give this one a read. Don't expect much more than a little bit of entertainment, though.