3.5 stars. The emotionality of Julian Barnes' "The Sense of an Ending" (a book I liked) meets the narrative style of Cormac McCarthy's "The Road" (a book I didn't like), and adds up to a book that I thought was okay. 
 I enjoyed the premise and the way the story's simplicity enhanced its emotional depth. I also enjoyed reading about an older couple--a demographic that is underrepresented in literature. But stylistically I wasn't feeling the run-on-sentences-and-no-punctuation vibe.