I found this short novella well written and engaging. I thought the characters were simple but appropriate for the length of the story. I liked the ideas explored and the vagueness I initially felt was quickly sorted by realising that was intentional. There is nothing too complex going on and don't look to make this a deeply complicated read as you will be disappointed. However if you are commuting or waiting in a room it is perfect.
I would recommend this if you are "between books"